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Manual for Service Troubleshooting

1. Check code Outdoor 7 segment display AI NET i Detected Check Code Wired central ae Status Error detection condition Check item position remote Check control position name controller code Sub code remote controller Check connection cabling of TCJ sensor connector 1 e Indoor Indoor Coresponding Resistance value of sensor is Checke characteristics OF TC Senger unit sensor error unit only stops infinite or zero Open Short resistance value Check indoor P C board error Check connection cabling of TC2 sensor connector Indoor Indoor TC2 Coresponding Resistance value of sensor is F02 Od Check characteristics of TC2 sensor unit sensor error unit only stops infinite or zero Open Short resistance value Check indoor P C board error Check connection cabling of TC1 F03 93 Indoor Indoor 161 Coresponding Resistance value of sensor is of TC1 sensor unit Sensor error unit only stops infinite or zero Open Short resistance value Check indoor P C board error Check connection of TD1 sensor connector TD1 sensor Resistance value of sensor is F04 F04 19 VF All stop EUH Check characteristics of TD1 sensor error infinite or zero Open Short resistance value Check indoor P C board I F error Check connection of TE1 sensor connector TE1 sensor Resistance value of sensor is F06 F06 18 I F All stop
2. These errors are concerned to communication of remote controllers and central system AI NET X Y and the main remote controller displays E01 E02 E03 209 or E18 in some cases and displays none in other cases according to the contents page 28 TOSHIBEL 2 1 CHANGING DN CODES Changing DN Codes AMT31 32 AMS41 Valid for all Toshiba RAV Digital and Super Digital Inverter except Flexi and all Mini SMMS and S MMS devices Method 1 Press simultaneously SET CL TEST button for 4 seconds or more In a control group is the first digit indicated the address of the master device 2 When you select a control group with the UNIT button you select the indoor unit on which the value should be changed The selected fan of the indoor unit turns ON 3 Use the button for the temperature setting for the DN Code 4 Change with the time setting button the value of the DN Code 5 Press SET button to confirm 6 To save and to finish press TEST button to return to the usual display ser DATA 9 NAA S zu DON OFF 4 Co uh page 29 m TOSHIBEL 2 1 CHANGING DN CODES Changing DN Codes AMS 51 Valid for all Toshiba RAV Digital and Super Digital Inverter except Flexi and all Mini SMMS DN Codes AMS 51 Valid for all Toshiba RAV Digital and Super Digital Inverter except Flexi and all Mini SMMS and S MMS
3. e ae e E E EE Ea S 40 53 page 5 TOSHIBEL 2 1 CHECK CODE RAS Troubleshooting RAS devices Self Diagnosis by Remote Control Check Code 1 If the lamp are indicated as shown B to G in Table 9 3 1 exchanger the self diagnosis by the remote control 2 When the remote control is set to the service mode the indoor controller diagnoses the operation condition and indicates the information of the self diagnosis on the display of the remote control with the check codes If a fault is detected all lamps on the indoor unit will blink at 5Hz and it will beep for 10 seconds Pi Pi Pi The timer lamp usually blinks 512 during the self diagnosis 1 How to use remote control in service mode TOSHIBA A AUTOA 068 P 1 2 3 4 Press CHK button with a tip of pencil to set the remote control to the service mode QO is indicated on the display of the remote control The timer lamp on the indoor unit blinks continuously 5 times per 1 sec Press TIMER button If there is no fault with a code the indoor unit will beep once Pi and the display of the remote control will change as follows 00 gt 012 022 1d gt 1E 22 Check the unit with all 35 check codes 00 to 22 as shown in table 1 Press TIMER Vi button to change the check code backwards If there is a fault the indoor unit will beep for 10 seconds Pi Pi Pi Note the check code
4. TROUBLESHOOTING DI S DI DI BIG Troubleshooting at Digital Inverter and Super Digital Inverter In case of wired remote controller RBC AMT32E amp RBC AMS41E amp RBC AMS51E ES 3 Confirmation and Check When a trouble occurs in the air conditioner the check code and the indoor unit no are displayed on the remote controller The check code is displayed while the air conditioner y 7 UNIT operates If the display has disappeared operate the air conditioner and check the error based upon the following Confirmation of error history 2 Confirmation of error history 2 If a trouble occurs in the air conditioner the error history can be found with the following procedure Up to 4 error histories are stored in the memory This history can be confirmed from either operating status or stop status Check code Indoor unit no in which an error occured amp TEMP DON OFF 3 Procedure Description SET TEST When pushing CO and buttons simultaneously for 4 seconds or more the below display appears If Service Check is displayed the mode enters the error history mode 01 Error history order is displayed in code number window Check Code is displayed in code number window Indoor unit address with error is displayed in UNIT No UNIT No R C No Each successive push of the temp set Cv CA buttons the error h
5. 97 99 e e Indoor unit and follower units 00 No header unit E19 E19 02 Two or more header 96 e e Outdoor header unit quantity error F units E20 220 42 a Other line unit connected during automatic address Communication sending error between outdoor E23 E23 24 15 e e o E units E25 E25 15 e e O Duplicated outdoor follower address setup F No of normally received E26 E26 y 15 e Decreased number of connected outdoor unis F outdoor unis No of detected outdoor E28 E28 nits d2 e e Outdoor follower unit error F 01 IPDU1 error 02 IPDU2 error 03 IPDU12 error E31 E31 04 Fan IPDU error CF e e IPDU communication error VF 05 IPDU Fan IPDU error 06 IPDU2 fan IPDU error 07 all IPDUs error CHECK CODE SMMSi Check code Wireless sensor NET S block displ Main remote Outdoor 7 segment display Rods gust supo ay on Check code name Detected position trol Sub code controller loperation timer ready Flash F01 OF e ALT Indoor TCJ sensor error Indoor unit 1 202 d gs Od e ALT Indoor TC2 sensor error Indoor unit F03 93 e ALT Indoor TC1 sensor error Indoor unit F04 04 19 ALT 101 sensor error F
6. page 27 TOSHIBEL 2 1 CHECK CODE MiNi SMMS Error detected by TCC LINK central control device Check Code Displa Outdoor 7 segment AI NET pay 8 Detected Error detection 1 ET central display Central control osition Check code name Status condition Check item position control Check remote device code Sub code controller iz not tr ngmit Check central control device error cos TCC LINK TCC Link central control Operation cantral control Check communication line error of device transmission error continued device central control device Check setup of terminator resistor Check central control device error Check communication line error of not received central control device TCC Link central control Operation cantral control Check setup of terminator resistor device receiving error continued device Check the power of connecting destination connected device Check P C board error of the connected device 2 Error was input in HA control Interface batch alarm of Operation d C12 225 2 HA control device Check error input interface HA control interface continued control interface An error occurred in Check the check code of the unit follower unit of the with alarm Differs according to error contents of TCC LINK Follower unit error of Operation group control P30 the with alarm group co
7. Signalis still ON during Thermo off Signal is OFF during alarm status CN60 Heating output Indoor P C Board max 2m Relais DC12V COM DC12V Heating Output Signal ON when heating mode Heating Heating in Auto RC ON amp Mode HEATING Signalis still ON during thermo off Signal is OFF during alarm status page 45 m TOSHIBEL 2 1 CN CONNECTOR CN60 Fan output Indoor P C Board Relay DC12V COM DC12V Fan output Signal ON when indoor fan is running ex Interlock cabling for booster fan etc Signal ON when indoor fan is running Interlock cabling with booster fan for fresh air intake etc Closed and terminal Indoor P C board Duct fan motor R AC220 C CN60 to 240V White Relay for duct fan Closed and f terminal page 46 I TOSHIBEL 2 1 CN CONNECTOR CN61 TCB KBCN61HAE A N e ON OFF input External ON OFF control DN code 2E JO1 OV Common for Pin 1 3 ON OFF prohibition input Remote controller ON OFF prohibition is permitted prohibited by input signal Operation output Open collector ON signal during remote controller ON amp No alarm DC 12V Common for Pin 4 6 Alarm output Open collector ON signal during alarm output Blue White Orange Yellow Red Brown page 47 TOSHIBEL 2 1
8. 3 When selecting flash the group number if there is the alarm history the UNIT number and the latest alarm history are displayed alternately In this time the temperature cannot be set up 4 To confirm the alarm history other than the latest one push temp set Ca D C Y to select Item code 01 to 04 5 confirm the alarm in the other group push and JC to select the group number Do not push button because all the alarm histories of the currently selected group are deleted 6 To finish the service check push button Unit no display Alarm display gere Caes MIRA E 1 UNIT No i A i IM c j as Q IU 1 1 Alternate flashing i R C No 1 display i page 10 TOSHIBEL 2 1 CHECK CODE DI S DI DI BIG Check Code List Error mode detected by indoor and outdoor unit Wired Wireless sensor lamp display mode Diagnostic function control Judgment and measure Operation Timer Ready Nt Cause of operation sup dun Condition 1 Check cables of remote controller and No communication from remote controller communication adapters e e E03 ndluding wireless and communication Stop Displayed when error is Handy remote controller LCD display 6 Automatic reset detected OFF Disconnection adapters Central remote controller 97 check code he 1 Outdoor unit does not complet
9. 700 1 i liquid sid 2 x 400 1 02 x 800 1 al liquid Side al gas side Outer dia B Outer dia Packed valve T Outer dia B Outdoor unit Outer dia QA Modulating PMV SKV 18026 Accumulator Mutter STF 02136 Capillary 5002 3 02 25 1210 Heat exchanger 1530 025 1160 __ fow 30 stages FP1 3 flat fin Rotary compressor DA220A2F 20L Cooling Heating Code Display 00 Indoor Temperature 01 Indoor Temperature remote control Data ar 02 Indoor Temperature TA indoor units 03 Heat exchanger temperature TCJ 04 Heat exchanger temperature TC Code Display 60 Heat exchanger temperature TE 61 Outdoor temperature TO Data of 62 Hot gas temperature TS outdoor units 63 Suction temperature TD 6 cm 65 Overheating temperature page 38 I TOSHIBEL 2 1 MONITORING Monitor functions for MiNi SMMSi and S HRM Code System data Unit Display Code System data Unit Display output output 00 Indoor temp control temp 10 Compressor 1 hot gas temp Td1 C x1 N 01 ndoortemperature remote C 11 Compressor 2 hot gas temp Td2 C x1 controller o 02 Inner part of intake TA C x1 12 High pressure sensor Pd MPa x 100 S 03 Inner part of register temp TCJ C x1 13 L
10. CN CONNECTOR CN61 External ON OFF Indoor P C Board ON OFF input COM 0 Power supply max 2m Logic DN2E 101 Action PULSE Pulse width 200 to 300 mS Pulse interval 200 mS or more INPUT 0000 Connect At shipment STATIC ON OFF X INPUT Cut LEAVING ON 0 PREVENTION Prohibition OFF 8 CONTROL reset Prohibition Connect 0001 Heat highest set point No action ACTION COOL DRY Lowest set point AUTO FAN Neglect Cut X page 48 I TOSHIBEL 2 1 CN CONNECTOR CN61 Prohibition input Indoor P C Board max 2m COM OV Prohibition input Power supply When signal ON remote controller ON OFF is prohibited Central controller become Central 1 mode CN61 Reference Central controller prohibition mode CENTRAL ON OFF MODE SET POINT EM 1 X CN61 Prohibition A 3 X X 4 X This prohibition can be released from central remote controller page 49 m TOSHIBEL 2 1 CN CONNECTOR CN61 Operation output Indoor P C Board max 2m Operation output COM DC12V RELAY DC 12V SIGNAL ON DURING OPERATION Operation Remote contoller ON amp No alarm Note Individual signal output in group control is available If follower indoor unit generates alarm signal become OFF in this indoor unit only CN61 Alarm output Indoor P C Board ma
11. On the remote controller Main remote control central remote controller and the interface board of the outdoor unit I F is an LCD display remote control or a 7 segment display interface board to indicate the particular function There you have the opportunity to check the function With the help of self diagnosis problems or equipment failure can be easily found by using the following table List of faulty codes The following list includes all error codes With this list you can find the content which has to be tested of each unit e check with the remote control unit for the area See Main remote controller display in the list e Examination of outdoor unit See 7 segment display outdoor unit in the list e check with the central AI NET remote controller See central remote control in the list e 15 with an infrared remote control for indoor unit See Sensor block display of receiving unit in the list Terminology flaming flashing e OFF AI NET Artificial intelligence IPDU Intelligent Power Drive Unit ALT Alternate flashing of two LEDs SIM Simultaneous flashing of two LEDs Error due to central monitoring TCC LINK detected page 17 I TOSHIBEL 2 1 Check code Wireless sensor NET Sensor block display on Main remote Outdoor 7 segment display ALNET central Check code Detected
12. TOSHIBEL 2 1 Flash O Goon CHECK CODE DI S DI DI BIG Flash Wireless sensor lamp display las Diagnostic function Check Judgement and measures Operation Timer Ready code Cause of operation Status of air conditiner Condition 2 Displayed when 1 Set the indoor capacity e 09 Unset indoor capacity Stop error is detected DN I1 Outdoor unit and other errors 1 Check cables of Communication error between and IPDU Displaved when and IPDU e e L29 coming off connector Stop Y 2 Abnormal overload error is detected S Heatsink temperature error operation of Detection of temp over specified value refrigerating cycle WR Displayed when 1 Check outside devices 9 9 130 input Stop error is detected 2 Check indoor P C board 1 Check power phase der reserved Phase detection protective circuit operates Normal 0 ti ti Di d wh or 0 ne Drege misne P P 2 Check outdoor P C board 2 1 Check thermal relay off D Displayed when No check code is displayed Fan motor thermal protection Stop fan motor error is detected 2 Check indoor P C board 2 1 Check refrigerating Discharge temperature error Displayed when cycle Gas leak P03 over specified value was Stop errat ie detected 2 Trouble of PMV 3 Check TD sensor 1
13. gas suction gas main pipe Check operation error of check valve of discharge gas pipe Check clogging of circuit at auxiliary heat exchanger side miswiring disconnection wiring missing Check circuit of SV5 valve Check refrigerant overcharge Sub code A Short circuit current was detected when 2 A Motor seconds or more Outdoor fan IPDU All stop Pond after start Check power supply voltage error Check fan IPDU error Over current was detected when 30 P22 P22 1A FAN IPDU seconds or more passed after start time Sub code d Check fan motor lock phase a HAS lock 5 m Abnormal current was missing Tr short circuit All stop detected within 30 Check cause of abnormal overload at protection error seconds after start start time time Check connection of connector to fan motor Check connector connection and 01 Compressor 26 26 1 side 14 IPDU All stop Shen compressor of compressor coil started Check outdoor P C board IPDU error Check connector connection and 01 Compressor Compressor E wiring P29 P29 1side 16 IPDU position detection All stop Position was not Check compressor error and defect NDA normally detected circuit error of compressor coil Check P C board IPDU error Other indoor E07 L07 L03 LO8 was P31 47 Indoor eror Group Corresponding when Check indoor P C board follower unit unit only stops indoor unit in the error group was defective
14. gt LED 1 ThD1 Sensor Fault LED 2 ThD2 Sensor Fault LED 3 ThS Sensor Fault LED 4 HP Trip by sensor LED5 Pd Sensor Fault LED 6 Discharge Pipe gt 130 C LED 7 Suction Pipe 40 C LED 8 Low Pressure Trip Inverter PCB SWO1 set to Off Off 14 Refer to outdoor gt 14 Refer to outdoor gt eooo Low Inverter Voltage 1d Refer to outdoor gt 1d Refer to outdoor gt High Inverter dc Current 1F Refer to outdoor 1F Refer to outdoor gt High Inverter ac Current 18 Refer to outdoor gt 18 Refer to outdoor gt ThE Sensor Fault 21 Refer to outdoor gt 21 Refer to outdoor gt Inverter HP Trip Inv Comp overheat 5 Phase Rotation DOL HP Trip Overload Trip DOL Comp overheat CHECK CODE 3 Pipe Super Multi 4076 Fault Codes 3 Pipe Super Multi Do not turn off the power supply before reading the fault codes doing so will clear the diagnostic memory Caution must be taken when removing the access covers as high voltages are present Fault diagnosis is available at three locations within the Air Conditioning system 1 Remote Controller Press the check button 2 Multi Controller rotate the display switch to position 1 3 Outdoor Unit see following chart Remote Controller Multi Controller Outdoor Unit press
15. ny 6 ug up upo ugg 1 ugg 1 5 ugg ugg ugg 1 2 45 ide 7 ugg ugg db uge de de 87 ugg uno ung upg 2 ung bb 7 22 ugg upo Eg 1 45 de 7 ugg 9 db dc Outdoor Unit interface segment CHECK code No display on the remote controller NOTE To retrieve fault codes ensure rotary switches 1 2 and 3 on the outdoor interface PCB MCC 1343 01 are all set to 1 factory default setting Individual indoor Fault Codes can be retrieved by referring to page 49 page 34 TOSHIBEL 2 1 CHECK CODE MAR 2 Pipe Super Multi R407C Fault Codes 2 Pipe Super Multi R407C Do not turn off the power supply before reading the fault codes doing so will clear the diagnostic memory Caution must be taken when removing the access covers as high voltages are present Fault diagnosis is available at three locations within the Air Conditioning system 1 Remote Controller press the check button 2 Multi
16. 1 CHECK CODE MiNi SMMS Check code Outdoor 7 segment AI NET Wired display Central control Detected Check code name Status Error detection Check item position remote position condition Check remote controller Code Sub code controller Error of 4 way valve error Check coil error and connector connection of 4 way valve When abnormal Chec of TS1 TE1 Detected 4 way valve refrigerating cycle data 19 19 2 8 VF All stop sensor resistance value outdoor unit No operation error was detected in e heating Check characteristics of Pd Ps pressure sensor output voltage Check misconnection of TE1 and TL sensors Check Pd pressure sensor error Check full opening of service valves Gas side liquid side Check outdoor fan error Check outdoor fan motor error Check clogging of outdoor PMV Check clogging of Indoor Outdoor heat exchanger Check air short circuiting in outdoor unit Check clogging of SV2 circuit Check outdoor P C board I F error Check indoor fan system error Cause of air volume decrease High pressure Pd Sensor 3 6MPa or Check valve opening of indoor PMV P20 P20 22 I F protective All stop d operation more Chec miscabling of communication line between indoor and outdoor Check operation error of check valve of discharge pipe Check circuit of gas balance SV4 valve Check mispiping of discharge
17. 5 C 0000 0 Thermo Shift Thermal shift of Discharge Air in Cooling Mode 5 004 4 C 0010 10 C ree A 0000 0K Heat cool c o range Changeover sensitivity in automatic mode 0010 10 K C 777 77 Min Setting Auto mode minimum temperature setting 18 29 0000 disable 28 Aut tart enabl Supplied as disabled 0000zext filter input A Function assignment contact CN70 0001 ext alarm input 2A Ext t CN70 xt SIDE inputi Series 2 wall unit gt condensate pump 0002 ext humidifier input factory setting 0000 off 0001 restart in the same mod such as when switching off 0002 fire alarm input ES 4 0000 08 factory setting Ext fan control CN32 Activation of FAN button on the controller 0001 CN32 ON OFF Sensor location Return air room sensor OR in local controller 0001 remote sensor f 0000 C Temperatur unit Display TS on controller 0001 0000 Standard 0006 ultra high air flow HA connector CN61 Function assignment contact CN61 HA terminal Used with high ceiling or applications with high sensible Air flow correction loads Locks timer in wired local controller maintaining last 0000 unlocked Timer lock setting 0001 locked 0000 high air flow volume pene 2 SECTOR Heating correction 0001 Correction page 32 I TOSHIBEL 2 1 CHECK CODE RAV old series Check Code RAV Series 4076 R22 Do not turn off the power supply before reading t
18. AP 1MH MMU AP 2SH MMD AP 1BH MMD AP 1SPH MMK AP 2H MMC AP 1H RAV SM SP UT E RAV SM MUT E RAV SM CT E RAV SM 1BT E RAV SM 1 2KRT E Corresponds up to a relay in which rated current of the operation coil is approx 75mA Indoor Unit Specification of Relay AC motor type MMU AP 1WH MMU AP 1YH MMU AP 1SH MMD AP 1H MML AP 1H MML AP 1BH MMF AP 1H MMK AP 1H RAV SM OBT E Flexi type XT type is not available for application Corresponds up to a relay in which rated current of the operation coil is approx 16mA Does not correspond to a terminal block type relay on the market page 41 TOSHIBEL 2 1 CN CONNECTOR CN32 TCB KBCN32VEE DC12V Common Fan output Open collector Shipment setup DN31 20000 ON with indoor unit ON amp OFF with indoor unit OFF are linked Ventilation control DN31 20001 Individual ON OFF control form ventilation button of remote controller RC ON gt Ventilation ON If already ON ON remains RC OFF gt Ventilation OFF If already OFF OFF remain White CN32 Ventilation control Indoor P C Board COM DC12V Fan Output Red Blue RELAY DC12V Ventilation control from remote controller DN31 0000 CN32 output links with indoor unit ON OFF No ventilation sign on LCD DN31 0001 CN32 output links with indoor unit ON OFF Individu
19. CHECK Switch position 1 Switch position 2 amp 0 04 No communication gt 04 No communication gt 04 No communication Interface to Inverter Interface to Inverter Interface to Inverter 04 No communication gt 04 No communication Multi Controller to Outdoor Multi Controller to Outdoor 04 No communication Indoor to Multi Controller Ob ID Water Level oc TA Sensor Fault 88 doesn t recognize outdoor capacity Od TC Sensor Fault 80 Th A Sensor Fault 80 Th A Sensor Fault 08 Reverse change temp 81 Th B Sensor Fault lt 81 Th B Sensor Fault 09 Frost or no temp change 82 Th C Sensor Fault lt 82 Th C Sensor Fault 99 No communication 83 Th D Sensor Fault 83 Th D Sensor Fault Indoor to Rem Con 15 Refer to Multi Controller gt 84 Th X Sensor Fault lt 84 Th X Sensor Fault Preheat Defrost Flash Ob M C Water level lt Ob M C Water level 89 ID Codes set too high 89 ID codes set too high ID Codes set to zero IC Refer to Outdoor gt IC Refer to Outdoor gt ThD1 Sensor Fault gt 1 ThD2 Sensor Fault gt A2 ThS Sensor Fault gt A3 ThO Sensor Fault gt AS ThE Sensor Fault gt A6 Discharge Pipe gt 130 C gt A7 Suction Pipe gt 40 C gt AA Pressure Sensor Fault gt AE Low Pressure Trip 14 Refer to Outdoor gt 14 Refer to Outdoor gt 14 Low Inverter Voltage 1d Refer to Outdoor gt 1d Refer to Outdoor gt 1d High Inverter dc Current 1F Refer to Outdoor gt 1F Refer to Outdoor gt 1F High Inverter a
20. Check characteristics of TE1 sensor error infinite or zero Open Short resistance value Check indoor P C board I F error Check connection of TL sensor connector Resistance value of sensor is F07 F07 18 VF TL sensor error All stop infinite or zero Open Short Check characteristics of TL sensor P resistance value Check outdoor P C board I F error Check connection of TO sensor Resistance value of sensor is Connector ee F08 F08 1b VF TO sensor error All stop infinite or zero Open Short Check characteristics of TO sensor P resistance value Check outdoor P C board I F error Check connection cabling of TA sensor connector Indoor Indoor TA Coresponding Resistance value of sensor is sot F10 pes aps oc j NOR Check characteristics of TA sensor unit sensor error unit only stops infinite or zero Open Short resistance value Check indoor P C board error Check connection of TS1 sensor connector TS1 sensor Resistance value of sensor is F12 F12 01 TS1 A2 VF All stop Check characteristics of TS1 sensor error infinite or zero Open Short resistance value Check outdoor P C board I F error Resistance value of sensor is GBT built in temp sensor error F13 F13 01 Compressor side 1 A3 IPDU TH sensor error All sto P P infinite or zero Open Short Exchange IPDU P C board During operation of Check installation of TE1 sensor and Outdoor temp compressor in HEAT mode TL sensor F15 F15 ta
21. Controller rotate the display switch to position 1 3 Outdoor Unit see following chart 9 LED flashing LED lit page 35 TOSHIBEL 2 1 Remote Controller Multi Controller Outdoor Unit press CHECK Switch position 1 Switch position 0 04 No communication gt 04 No communication LED 5 off No communication Interface to Inverter Interface to Inverter LED 6 on Interface to Inverter 04 No communication gt 04 No communication Multi C to Outdoor Multi C to Outdoor 04 No communication Indoor to Multi C Ob ID water level oc TA Sensor Fault 88 doesn t recognize outdoor Display Switch setto 8 capacity If lit Od TC Sensor Fault 80 Th A Sensor Fault LED 1 Th A Sensor Fault 08 Reverse change temp 81 Th B Sensor Fault LED 2 Th B Sensor Fault 09 Rtost or ne temp change 82 Th C Sensor Fault LED 3 Th C Sensor Fault 99 No communication 83 Th D Sensor Fault lt LED 4 Th D Sensor Fault Indoor to Rem Con 15 Refer to Multi Con gt 84 Th X Sensor Fault LED 5 Th X Sensor Fault Preheat Defrost Falsh gt Ob M C Water level M C water level 89 ID Codes set too high lt LED 6 IG Codes set too high ID codes set to zero LED 7 M C 1 Sensor Fault LED 8 M C 2 Sensor Fault Display switch set to 3 If lit IC Refer to outdoor EZ IC Refer to outdoor
22. FOS FOS A1 o ALT TD2 sensor error F F06 F06 18 o Oo ALT TE1 sensor error F 1 207 F07 18 o ALT TL sensor error F 208 208 1b o ALT TO sensor error F F10 ced oc e ALT Indoor TA sensor error Indoor unit F12 F12 A2 o ALT TS1 sensor error F 01 Comp 1 side F13 F13 02 ens 2 side 43 a a ALT TH sensor error IPDU F15 F15 18 ALT Outdoor temp sensor miscabling TE TL F F16 F16 43 O ALT Outdoor pressure sensor miscabling Pd Ps F F23 F23 43 ALT Ps sensor error F F24 224 E 43 o ALT Pd sensor error F 1 F29 d 2 e SIM Indoor other error Indoor F31 F31 1C SIM Outdoor EEPROM error F 01 Comp 1 sid H01 101 02 2 du F e e Compressor breakdown IPDU Compressor error lock MG switch 101 C 1510 H02 HOPS ca d ex MG SW error IPDU 4 OCR operation Over current relay 1 e H03 01 Comp 1 side 7 Current detection circuit system error IPDU 02 Comp 2 side 104 104 E 44 e e Compressor 1 case thermo operation F H06 106 20 e e Low pressure protective operation F H07 H07 47 e e Protection for oil level drop detection F i 01 TK1 sensor error H08 108 02 162 sensor error 04 e e Oil level detective temp sensor error F 03 TK3 sensor error 04 sensor error H14 H14 44 e e Compressor 2 case thermo operat
23. Overload operation of refrigerating cycle High pressure protection error by TE sensor Displayed when 2 Check outdoor temp e P04 Temperature over specified value was detected Stop error is detected sensor TE 3 Check outdoor CDB P C board 4 2 1 Defect of drain pump Float switchoperetion Displayed when 2 Clogging of drain pum e P10 Disconnection coming off defective float switch Stop P Y i seine 8 bump contactor of float circuit error is detected 3 Check float switch 4 Check indoor P C board 1 Defective detection of position Displaved wien 2 Over current protection e P12 Indoor DC fan error Stop circuit of indoor fan error is detected is driving unit operates 3 Lock of indoor fan 4 Check indoor P C board Error in 4 way valve system 1 Check 4 way valve Indoor heat exchanger temperature lowered after Sto Disglaved when 2 Check indoor heat e P19 start of heating operation exchanger TC TCJ Automatic reset error is detected sensor 3 Indoor P C board 1 Defective detection of position 2 Over current protection Displayed wh ircui P22 Outdoor DC fan error Stop aye pet eircult of error is detected driving unit operates 3 Lock of outdoor fan 4 Check outdoor CDB P C board 1 Inverter immediately stops even if restarted Inverter over current protective circuit operates for a Displayed when Compressor motor rare e P26 short time Short voltage of main circuit operates Stop
24. as well S MMSi devices Method 1 Press the Menu button to reach the Menu 2 Press the Menu button and the temperature down button for simultaneously 5 seconds to reach the next submenu 3 Press the temperature up down button to point setting confirm with F2 4 To select the changing Code use the arrow keys and change between both fields with the F1 and 22 button D After changed the code press FEST button to save 6 To finish press the return button TOSHIBA RoomA 12 14 5246 Mode Fan Speed Menu FEST B 0 Return Vv Temperature page 30 TOSHIBEL 2 1 DN CODES DN device Code Chart 0000 inaktiv 0001 150 hrs Filter sign displayed after selected time has elapsed or by 0002 250 hrs external pressure switch CN70 0003 500 hrs 0004 1000 hrs 0005 ext switch Allows filter alarm time to be halved if used in a dirty 0000 Standard Dirty Environment environment 0001 Dirty Network address When unter network control 901 t0 0064 available 0099 Factory setting Priority setting for remote 02 normal 1 Priority This remote has priority of mode 0000 Standard controller setting 0001 Priority DR Increase effective return air temperature setting in heating Stratification control mode 0 to 10K Default 2 0000 to 0010 MM 0000 available AUTO Mode Deactivating of Auto mode 0001 not available 0000 heat pu
25. error Pd 4 15MPa during Check outdoor P C board I F stop of compressor error Corresponding Loa Check indoor P C board error F29 12 Indoor Indoor other error did not operate unit only stops normally EEPROM error Check power voltage F31 F31 1 Outdoor EEPROM All 1 pen Check power noise utaoor TOP stop 1 M operate Check outdoor P C board I F error Check power voltage AC220 240V 109 01 C pato H01 101 eli 1F IPDU Compressor breakdown All stop Check cause of abnormal overload operation current and stopped Check outdoor P C board IPDU error Check compressor error Check power voltage AC380 10 415V 10 6060 ps cable of compressor and 01 Compressor detected several Jk Hil M PUES H02 2 1d IPDU Compressor error lock All stop seconds after header d side 1 compressor had connection on IPDU P C board Check conduction of case heater Check activation error due to liquid stagnation in compressor Check outdoor P C board IPDU error While header compressor Check cabling of current detection 01 Compressor Current detection circuit stopped current circuit system no side 1 7 FDU system error All stop flowed more than Check outdoor P C board IPDU the specified current error and was detected Check compressor 1 case thermo circuit Check full opening of service valve Gas and liquid side Compress
26. error is detected short 2 Check IPDU Cabeling error 1 Position detection Disslsved when circuit operates even if e P29 IPDU position detection circuit error Stop p operating compressor by error is detected removing 3P connector Replace IPDU 1 Judge sub unit while e Own unit stops while warning is output to other indoor Stop Sub unit Displayed when master unit is in E03 units Automatic reset error is detected LO3 107 108 2 Check indoor P C board For an error mode detected in outdoor unit the fan operates because sub unit of a group operation does not communicate with the outdoor unit page 12 TOSHIBEL 2 1 CHECK CODE DI S DI DI BIG Error mode detected by remote controller Flash 9 occurrence of alarm Based on a case error is detected Wired Wireless sensor lamp display remote Diagnostic function controller Judgement and measures Operation Timer Ready Check code Cause of operation Status of Condition conditioner Remote controller power error defective indoor EEPROM Checkremote controller inter unit No check cables code is No communication with master indoor unit Checkremote displayed Remote controller cable is not correctly controller Remote connected Stop Check indoor power controller Power of indoor unit i
27. gas leak 1 Compressor thermo Operation return serial 2 Unit operates normally during check operation continues signal and If return serial signal does not stop between Gas shortage normal status 2 A f gt and Y replace inverter P C board a Gas leak when signal is fe duns ame ek and 2 Instantaneous power failure reset Signals Op CES PER E indoor P C board 8 Compressor does not rotate 2 Current protective circuit does Displayed when 1 Trouble on compressor E lel not operate when a specified All off error is 2 Trouble on wiring of compressor Missed 0 time passed after compressor detected phase had been activated Displayed when 1 Check discharge temp Sensor TD e Ir Discharge temp exceeded 117 C All off error is 2 Degasing detected 3 Trouble on PMV 1 Check power voltage 220 240 V 10 Displayed when P 9 2 Overload operation of refrigeration cycle fil Break down of compressor All off error is e PES E Check installation condition Short circuit of detected outdoor diffuser Four way valve inverse error TC Operation rici sensor value lowered during Check 4 way valve operation LU continues heating operation Displayed when 1 Checklamp on inverter P C board 20 P M V error All off error is 2 Check PMV wiring detected 3 Replace PMV page 8 TOSHIBEL 2 1
28. on the display of the remote control 2 digis alphanumeric will be indicated on the display All lamps on the unit will blink 5 times per 1 sec Press CLR button After service finish for clear service code in memory 7F is indicated on the display of the remote control Press 6 button to release the service mode The display of the remote control return to as it was before service mode was engaged Alphanumeric characters are used for the check code 5 is 5 B is 6 H is A b is B is C d is D The illustration in only for Heat pump module For cooling only model there is not the 22 symbol page 6 TOSHIBEL 2 1 CHECK CODE RAS 2 Caution at servicing 1 After servicing push the START STOP button to return to the normal mode 2 After servicing by the check code turn off breaker of the power supply and turn on breaker of the power supply again so that memory in the microcomputer returns the initial status However the check codes are not deleted even if the power supply is turned off because they are stored in the fixed memory Table 1 Block distinction Operation of diagnosis function Ai Check Check 2 T Judgment and action Block Cause of operation conditioner Remarks code Code status Short circuit or disconnection of 1 Checkthe room temp sensor rn Operation Displayed when LIL the room temperature sensor 2 When the room te
29. 18 Sensor All stop the TE1 detection temp was Check characteristics of TE1 and TL miscabling higher than that of TL by the sensor resistance value TE1 TL specified value continued for 3 min tes or more Check outdoor P C board I F error Check connection of high pressure Pd sensor connector High pressure Pd sensor and Check connection of low pressure Ps Mascus low pressure Ps sensor were sensor connector F16 F16 43 VF M Pd All stop exchanged or output Check pressure sensor Pd and Ps Ps EATS voltages of both sensors are error zero Check outdoor P C board I F error Check compression error of compressor page 22 I TOSHIBEL 2 1 CHECK CODE MiNi SMMS Check code Outdoor 7 segment AI NET Wired display central control Detected Check code name Status Error detection Check Item position remote position condition Check remote controller code Sub code controller Misconnection of Ps sensor and Pd sensor connectors Check connection of Ps sensor connector Output voltage of Ps Check Ps sensor error F23 F23 43 VF Ps sensor error All stop nior waszerd Check compression error of compressor Check 4 way valve error Check outdoor P C board I F error Check SV4 circuit error Output voltage of Pd 0 connection of Pd sensor sensor was zero connector F24 F24 43 VF Pd sensor error All stop Sensor Open Check Pd sensor
30. 18 TOSHIBEL 2 1 CHECK CODE SMMSi Check Code Wireless sensor Sensor block display on Check code name Detected position Main remote Outdoor 7 segment display control remote ihe receiver controller controller Sub Code operation timer ready Flash 701 Pol lt lt 11 e O 8 ALT Indoor fan motor error Indoor P03 P03 1E e ALT Discharge temp TD1 error VF P04 P04 xs RUE a 21 e ALT Actuation of high pressure SW IPDU 01 power supply open e phase 1 POS POS 0 h tiv ph I F 02 power supply negative AL pen phase passe phase 7 7 m IC e ALT Heat sink overheat error IPDU I F P10 P10 Indoor address with trouble Ob e ALT Indoor overflow error Indoor P12 P12 11 e ALT Indoor fan motor error Indoor P13 P13 m 47 ALT Outdoor liquid back detection error VF 01 TS conditi P15 P15 con 5 AE ALT Gas leak detection TS1 condition VF 02 TD condition P17 P17 bb e ALT Discharge temp TD2 error VF 19 P19 Detected outdoor unit No 08 e 4 way valve operation error VF P20 P20 22 a e ALT High pressure protective operation VF 1 0 IGBT shortage 1 Position detection circuit error P22 P22 3 Motor lock error 1A e ALT Outdoor fan
31. C AMT32E RBC AS21E RBC AMS41E RBC AMS51E ES and wireless remote controller kit such as TCB AX21U W E2 RBC SR1 PE RBC SR2 PE such as central control remote controller RBC CR64 PE page 14 m TOSHIBEL 2 1 7 SEGMENT DISPLAY Important Codes 7 segment display SMMSi and Mini SMMS swo1 50 02 50403 1 1 1 press SW15 gt for 5 sec automatic address setting 1 1 1 Error data 1 2 3 System capacity in HP 1 3 3 Number of outdoor units 1 4 3 A Number of indoor units B Number of indoor units connected in cooling mode 1 5 3 A Number of indoor units B Number of indoor units connected in heating mode Clear System indoor unit group address 2 1 2 Confirm that the 7 segment display indicates A d buS and turn SWO4 ON for more than 5 seconds 2 2 2 Clear central control address A d nEt gt and turn SWO4 ON for more than 5 seconds 2 1 Cooling test operation gt SWO04 5 sec 2 1 Heating test operation gt press 5 04 5 sec 2 11 1 Pump down function gt press SWO04 5 sec 2 16 1 Clearing error gt press SWO4 5 sec gt CL cleared 2 14 2 Add indoor units to a refrigerant cycle page 15 TOSHIBEL 2 1 CHECK CODES SMMSi Troubleshooting S MMSi device Confirmation and check When trouble occurred on the air conditioner the check code and the indoor unit No are displayed on the dis
32. HA Terminal CN61 1 2 3 4 5 6 TCB KBCN61HAE output alarm output Outside error input CN80 Alarm input L30 amp forced OFF TCB KBCN80EXE Applicable indoor units Alarm display TCB KBCN70OAE Forced thermo off control TCB KBCN73DEE Connector TCB KB CN32VEE CN600PE CN61HAE 7 CN73DEE CN80EXE 4 way MMU AP 1H OK OK OK OK OK OK 60 x 60 MMU AP 1MH OK OK OK OK OK OK 2 way MMU AP 1WH OK OK OK OK OK OK MMU AP 1YH OK OK OK OK OK OK 1 way MMU AP 1SH OK OK OK OK OK OK MMU AP 2SH OK OK OK OK OK OK Duct MMD AP 1BH OK OK OK OK OK OK g Hi static MMD AP 1H OK OK OK OK OK OK Slim duct MMD AP 1SPH OK OK OK OK OK OK Ceiling MMC AP 1H OK OK OK OK OK OK Hi Wall MMK AP 1H OK OK OK OK OK OK MMK AP 2H OK OK OK OK OK MML AP 1H OK OK OK OK OK OK Floor stand MML AP 1BH OK OK OK OK OK OK MMF AP 1H OK OK OK OK OK OK TM RAV SM UT E OK OK OK OK OK OK RAV SP UT E OK OK OK OK OK OK 5 60 0 RAV SM MUT E OK OK OK OK OK OK Duct RAV SM BT E OK OK OK OK OK OK Ceiling RAV SM CT E OK OK OK OK OK OK Flexi RAV SM XT E Hi wall RAV SM OKRT E RAV SM 1 2KRT E OK OK OK OK OK page 40 m TOSHIBEL 2 1 CN CONNECTOR Specification of relay Indoor Unit Specification Relay DC motor type MMU AP 1H MMU
33. IPDU error IPDU C TH sensor temp error d D TH sensor error E VDCeerror 01 C 1510 P26 P26 02 d 2 40 14 e ALT G Tr short circuit protection error IPDU 01 C 1510 P29 P29 02 cnp 2 Ra 16 e a ALT Compressor postition detection circuit error IPDU P31 P31 47 e ALT Other indoor error Group follower unit error Indoor b7 alarm Error Indoor group AI NET 97 AI NET communication error AI NET d 99 Duplicated network adaptors AI NET Error detected by TCC LINK central control device Check code Wireless sensor i NET Sensor block display on Display on Outdoor 7 segment display AI NET central play Check code name Detected position central control control remote the receiver device Sub code controller loperation timer ready Falash C05 TCC LINK central control device transmission error TCC LINK 1 C06 TCC LINK central control device receiving error TCC LINK Gerneral purpose c12 L 2 m Interface batch alarm of general purpose devic control devices VF 930 Differs according to error contents of the with alarm Follower unit error of group control TCC LINK d L20 is displayed Duplicate central control address Terminology TCC LINK TOSHIBA Carrier Communication Link page 19 I TOSHIBEL 2 1 CHECK CODE MiNi SMMS MiNi SMMS Check Code an Ch
34. Indoor P C Board max 2m COM DC12V Relay DC 12V Outside error input After signal is input continuously 3 sec later gt Forced thermo off 1 later Error code L30 Indoor unit is locked page 53 I TOSHIBEL 2 1 B Notes page 54 I TOSHIBEL 2 1 page 55 TOSHIBEL 2 1 TOSHIBA Leading Innovation gt gt gt LZ 9 28 916 r 68 08 91 p IAL euisny Biegsieles zZeID 08 egens 1100 yeuosiesebsiepued ueBejueeuii QNOO HIV ZLOZ LO jenuey 3 soua pue oj 0 www toshiba aircondition com Advancing the evolution
35. TOSHIBA Leading Innovation gt gt gt Manual for Service Troubleshooting page 2 TOSHIBEL 2 1 TOSHIBEL Manual for service and the decoding of error messages Summary of key data from the original Toshiba manuals Publisher AIR COND Klimaanlagen Handelsgesellschaft m b H Haushamer Stra e 2 8054 Graz Seiersberg Jan 2012 No liability is accepted for printing errors The reprinting is only permitted with the express approval of the publisher This manual doesn t replace the original manuals from Toshiba page 3 TOSHIBEL 2 1 page 4 TOSHIBEL 2 1 INDEX Troubleshooting RAS devices 6 Check Code RAS devices esses eene eene ete nennen entren 7 8 Troubleshooting Digital and Super Digital Inverter BIG 9 10 Check Code Digital and Super Digital Inverter BIG 11 14 Codes 7 Segment Displays 15 Troubleshooting SMMSi 16 Check Code SMMSI 25a re ert PERI RR EM RERUM 17 19 Check Code MiNi SMMS tete tnt tenent netten ennt 20 28 Changing of DN Codes 29 30 DN Code chart etie ER RH I t e te ette cies 31 32 Check codes m 33 407 H 34 MAR 2 pipe system 407 240 35 MAR 3 pipe system 407 36 Monitoring 37 39
36. al ON OFF by VENT button Ventilation sign on LCD VENT page 42 I TOSHIBEL 2 1 CN CONNECTOR CN60 TCB KBCN600OPE DC12V COM Common for Pin 2 to 6 Defrost output Open collector ON signal when outdoor unit is in defrosting when receiving defrost signal from outdoor unit Thermo ON output open collector ON signal when indoor unit is thermo ON Cooling output Open collector ON when operation mode is cooling Cooling Dry Cooling in Auto mode Heating output Open collector ON when operation mode is heating Heating Heating in Auto mode N Fan output Open collector ON when indoor fan is ON ex Interlock cabling White Red Blue Orange Yellow Brown Black page 43 I TOSHIBEL 2 1 CN CONNECTOR 060 Defrost output Indoor P C Board max 2m Relay DC12V COM DC 12V Defrost output ON signal output when outdoor unit is in defrosting when receiving defrost signal from outdoor unit CN60 Thermo ON output Indoor P C Board max 2m Relay DC12V COM DC 12V Thermo ON output ON signal when Thermo ON page 44 m TOSHIBEL 2 1 CN CONNECTOR CN60 Cooling output Indoor P C Board max 2m Relay DC12V COM DC12V Cooling output Signal ON when cooling mode Cooling Dry cooling Auto RC ON amp Mode COOLING
37. c Current 21 Refer to Outdoor gt 21 Refer to Outdoor gt 21 Inverter HP Inv Comp overheat Ad Phase Rotation DOL HP Trip Overload Trip DOL Comp overheat page 36 TOSHIBEL 2 1 MONITORING MONITORING Monitor functions Display of e Temperature values Indoor and outdoor temperature TO TA TC Td TS e Pressure values Pd Ps e PMV Status e Compressor status on off and power e Total capacity of indoor and outdoor units e Number of indoor and outdoor units Function available through Wired remote controller RBC AMT32E and previous model RBC AMT21E RBC AMT41E Available for e Digital Inverter e Super Digital Inverter e MiNi SMMS CL TEST 1 Press 5 2 button for 4 seconds TEMP 2 Press C Item Code etc to switch to the second Press gt button to select the unit from the group 3 Tofinish press 5 button page 37 IW TOSHIBEL 2 1 e S MMSi e S HRM Device Address Item Code Function Measurement UNIT No 4 Sk LL R C DON OFF MONITORING Monitor functions for Digital Inverter DI and Super Digital Inverter S DI RAV SM800UT E RAV SM800BT E RAV SM800KRT E RAV SM800AT E Disirdulor rana acoro dr gt Gas side QA Liquid side OB 159mm 9 5mm Specifications of capillary tube Model Inner da x Length x Qty MUERE RE Refrigerant pipe Refrigerant pipe QQ 300 1 02
38. drain pump circuit the connector Check clogging of drain pipe came off Check indoor P C board error Corresponding value of motor Check connection of fan P12 ve 1 Indoor Indoor fan motor error unit only stops speed deviated connector and wiring from target value Check fan motor error The standard ducted unit air conditioner utilizes a direct current DC indoor fan motor that features current limiting was detected for Check indoor P C board error protection In the event power is not isolated prior to service the protective control circuit will activate and stop the unit certain time 2 f Check influence of outside air operating The check code P12 will be displayed on the remote controller once service work has been completed this code Over current can be cleared by switching off the electrical isolation device of the indoor unit and pressing the operation stop button on protection contro the remote controller to reset the system operated Check indoor type code DN 10 and the capacity code DN 11 In Heating Check full close operation of Outdoor liquid back While the system is operating in HEAT mode outdoor PMV of which opening degree was 100p or outdoor PMV Chec Chec Chec Pd and Ps sensor error clogging of SV2 circuit clogging of 4 way valve P13 p13 adi 0 VF detection error AM stop less for a certain error circuit time Check outdoor P C board I F er
39. eck Position Displayed on the Remote Controller and Outdoor Unit 7 Segment Display of Interface Check Code Outdoor 7 Segment B Wired g APNE Detected i gt m display me Check code name Status Error detection condition Check item position reote central contr position Check remote controller code Sub code controller Check remote controller inter unit cable A B Check disconnection connector rae EN contact error Communication error Communication Cheik indor sewer suppl Remote between indoor and remote Corresponding unit interrupted between P PPY E01 Check indoor P C board error controller controller Detected at only stops indoor P C board and sCheck remote controlleraddr ss remote controller side remote controller setup When two remote controllers operate Check remote controller P C board 2 Signal could not be sent Check the communication wire of Remote Remote controller sending Corresponding unit E02 60800 ertor from remote controller to remote controller Exchange indoor unit remote controller Communication error No communication from E03 T 0 97 Indoor between indoor and remote Corresponding unit remote controller Check remote controller and Unit controller Detected at only stops including wireless and communication adaptor wiring indoor side communication adapter Check power ON order of indoor outd
40. ely The serial signal is not output from outdoor operate unit to indoor mE nter unit cable check correction of 5 sed Ais unit cables Stop Displayed when error is miscabling case thermo operation E 08 De in iis Rd eirculton Automatic reset detected Outdoor P C board check P C board out oor m oar M 0 cables check Defective serial receiving circuit on 51 indoor P C board In normal operation P C board Indoor receiving Outdoor sending check 1 Check when there is modification or remote controller connection Group Individual or not after power has been turned on finish of group Displayed wh i configuration address check e E08 Duplicated indoor unit addresses Stop a eA E detected If group configuration and address are not normal when the power has been turned on the mode automatically shifts to address setup mode Resetting of address Communication error between indoor 1 Check cables of remote controller e e E10 MCU Stop Displayed when error is 2 Check power cables of indoor unit Communication error between fan driving Automatic reset detected 3 Check indoor P C board MCU and main MCU Regular communication error between Sto Displayed when erroris 1 Check cables of remote controller e e E18 master and sub indoor units or between Aitonari reset ord 2 Check indoor power cable main and sub indoor unit 3 Check indoor P C board 1 Check indoor heat exch t Coming off disco
41. g automatic address Total capacity of indoor units exceeded 135 of total outdoor capacity Check the connection capacit Of connected indoor 6 party of indoor unit units are more than 48 units Check the HP capacity of indoor unit 00 Capacity over 1 m m orio 1 1 56 connected All stop If this code appears after Check the indoor outdoor 1 to No of connecte indoor units backup setup of outdoor unit capacity setup units Capacity over trouble set up No capacity Check the No of connected over detection indoor units Check the outdoor I F P C Setup method of No board error capacity over detection Turn on SWO9 Bit2 on I F P C board of outdoor header unit Communication Check cable of the remote indoor error between Corresponding Regular communication controller 18 97 99 nit indoor header unit only stops between indoor header and Check the power cabling of and follower follower units indoor units Check P C board of indoor The outdoor unit connected with communication cable between indoor and outdoor are multiple outdoor U1 U2 is the outdoor header 00 No Header unit Outdoor header header unit line 1 E19 E19 02 Two or more 96 I F unit quantit All stop head There is none outdoor Check connection of eaderunits header unit in line 1 communication line between indoor and outdoor Check outdoor P C board I F error 01 Connecti
42. he fault codes doing so may clear the diagnostic memory Caution must be taken when removing the access covers as high voltages are present Fault diagnostics is available by pressing the check button on the remote controller Note The first number displayed is a code for the number of compressor starts the indoor unit has requested This number is displayed using the hexadecimal format Numbers displayed after the start number are fault codes CODE FAULT SYSTEM STATUS CHECK oc TA Sensor open circuit No cooling operation Heating operation continuously heat pumps Sensor Resistance 20 C 12 5 k 25 C 10 k TA Sensor short circuit No heating operation heat pumps Cooling operation continuously Sensor Resistance 20 C 12 5 k 25 C 10 k Od TC Sensor open circuit Indoor fan stays off in the heating mode Sensor Resistance 20 C 12 5 k 25 C 10 k TC Sensor short circuit Outdoor unit simulates high temperature release continually Sensor Resistance 20 C 12 5 k 25 C 10 k 04 No communication Outdoor to Indoor Indoor unit operates outdoor unit does not Interconnecting cables isolator Outdoor transformer 240 12vac Printed circuit Board 08 Reverse change temp Cooling o p in Heat mode or Heating o p in Cool mode Operation of 4 way valve energized For heating TC Sensor 09 No change in temp of indoor unit Indoor unit operates Compre
43. ing check Connecting thermo XM is reset If return serial signal does not stop between 1 cable and Gas shortage and of the ind nial Block 7 serial signal Gas leak gt of the indoor terminal block replace inverter P C board If signal stops between indoor terminal 2 and 2 replace indoor P C board Flashes when 5 trouble is detected If return serial signal does not stop between 2 nc Operation command signal is not Operation on operation and replace inverter P C board sent to outdoor side continues signal and normal status when signal is reset If signal stops between indoor terminal block 2 and 2 replace indoor P C board page 7 TOSHIBEL 2 1 CHECK CODE RAS Block distinction Operation of diagnosis function Check Check a Judgement and action Block Cause of operation conditioner Remarks Code Code status y Displayed when Even if trying operation again all operations 1 Doo All off SONIS stop immediately circuit operates Short detected Replace P C board 1 Even if connecting lead wire of compressor is V t S removed position detect circuit error Position detect circuit error or Displaye w en occurred Replace P C board short circuit between windings of All off error is i Ut 2 Measure resistance between wires of compressor detected compressor and perf
44. ion F 01 TK1 oil circuit system error Oil level detective circuit system error F H16 H16 02 TK2 oil circuit system error d7 e a e MG SW error MG switch ell circuit system error OCR operation Over current rela 1 04 TK4 oil circuit system error P 103 Ln 96 e a e SIM Duplicated indoor center units Indoor 104 104 0 96 g SIM Duplicated outdoor line address VF 1 Duplicated indoor units with priority 105 EH 96 S Display on indoor unit with priority 1 6 Duplicated indoor units with priority 106 106 No of indoor units with 96 e SIM Displayed on the unit other than indoor unit VF 1 priority with priority 107 lt lt 99 e SIM Group line in individual indoor unit Indoor 108 08 me 99 e SIM ndoor group address unset Indoor 109 um 46 e SIM ndoor capacity unset Indoor L10 L10 88 mS SIM Outdoor capacity unset VF i 120 120 EN 98 O SIM Duplicated central control addresses AI NET Indoor 1 L28 L28 46 o SIM Quantity over of connected outdoor units VF 01 IPDUT error 02 IPDU2 error 03 IPDU3 error L29 L29 04 Fan IPDU error CF g SIM IPDU quantity error VF 05 IPDU1 Fan IPDU error 06 IPDU2 Fan IPDU error 07 All IPDUs error L30 L30 Detected indoor address b6 g SIM Interlock in indoor unit form outside Indoor L31 ipte Extended IC Integrated Circuit Error VF page
45. istories stored in the memory are displayed in order The numbers in the item code indicates item code 01 most recent to 04 oldest CAUTION If CL button is pushed all of the error histories of the indoor unit will be deleted TEST After confirmation push 2 button to return of the usual display page 9 TOSHIBEL 2 1 TROUBLESHOOTING DI S DI DI BIG In case of TCC LINK central control remote controller TCB SC642TLE 1234 PO TUN a BD 7 aad RC 4 SELECT ZONE 2 2 8 2 amp Cv 1 Confirmation and check When a trouble occurred on the air conditioner the check code and the indoor unit no are displayed on the display section of the remote controller The check code is displayed while the air conditioner operates If the display disappeared operate the air conditioner and check the error based upon the following Confirmation of error history Unit No display Alarm display i Alternate flashing 2 Confirmation of error history When a trouble occurred on the air conditioner the error history can be confirmed with the following procedure Up to 4 error histories are stored in memory This history can be confirmed from either operating or stop 1 Push A and a buttons in succession for 4 seconds or more 2 SERVICE CHECK 2 goes on and Item code 01 goes on
46. ler serial signal circuit 99 Indoor unit Indoor sensor TA short open circuit Indoor heat exchanger sensor TC1 short circuit Indoor heat exchanger sensor TC2 short circuit Indoor pressure sensor circuit Motor short circuit Drain pump fault Refrigerant circulation amount shortage judgement Indoor Outdoor communication short circuit Central management communication short circuit Central management address setup fault External input display fault Low level refrigerant leak if RBC RD1 PE fitted External interlock display fault High level refrigerant leak if RBC RD1 PE fitted Indoor unit miswiring misconnection Indoor P C board short circuit Outdoor IPDU High pressure SW circuit G Tr short circuit protective operation Current detection circuit Compressor error Compressor breakdown Outdoor 4 gt nit TH Sensor circuit Heat sink overheat protective operation uoc ngg nog upg 11 Ob nop nggu 97 ngg 5 be 12 ugg n ugg up 3 uda Liquid crystal remote controller CHECK code Inverter outdoor unit Inverter serial signal short circuit high level refrigerant leak if RBC RD2 PE fitted 4 way valve alarm Outdoor heat exchanger sensor TE1 short circuit Discharge temp sensor TD1 short circuit Discharge temp sensor TD2 short circuit Suction temp sensor TS short circuit High pressure sensor Pd shor
47. logging of indoor outdoor heat exchangers Check short circuiting of outdoor suction discharge air Check clogging of SV2 circuit Check outdoor P C board I F error Check indoor fan system error Cause of airvolume decrease Check opening of indoor PMV Check miscabling of communication line between indoor and outdoor Check operation error of check valve of discharge pipe Check SVA valve circuit Check SV5 valve circuit Chek refrigerant overcharge P07 P07 01 Compressor 1 side 1C IPDU VF Heat sink overheat error All stop IGBT built in temp sensor TH was overheated Check power voltage Check outdoor fan system error Check clogging of heat sink cooling duct Check fixation between IGBT and heat sink Check screwing and contact Check IPDU error IGBT built in temp sensor TH error page 25 I TOSHIBEL 2 1 CHECK CODE MiNi SMMS Check Code Outdoor 7 segment display AI NET Error detection i Detected I Chech item position Wired central T Check code name Status condition remote Check control position Sub code controller code remote controller Float switch Check the float switch connector operated Check operation of drain pump Indoor address itch circui unit P10 P10 Ob Indoor Indoor overflow error All stop Float switch circuit LUE with trouble disconnected or Check the
48. mp Controller set up Heat pump or cooling only 0001 cooling only Only heating Deactivating of COOL amp DRY 0008 heating only 0000 1 way Cassette 0001 4 way Cassette 0004 1 series duct 10 Ind T meer 0006 0 series duct 0007 ceiling 103 1 series hi wall Filter alarm time 0009 056 0015 1100 Indoor unit capacit 0000 will generate a fault Each indoor unit is automatically addressed this value y 0099 factory setting may be set manually but it must be done via the wired Outdoor unit NE 0001 outdoor unit 1 controller on an individual basis Settings are 0001 to 0002 outdoor unit 2 0030 Indoor units connected to a common outdoor unit e g eg 0099 factory setting twinned indoor units will have the same system number f System number 0001 indoor unit 1 settings 0001 to 0064 Automatically allocated but 0002 indoor unit 2 may be manually overridden 0099 factory setting 0000 Single indoor unit 0001 group master 0002 group slave Allows selection of master indoor unit within group Group master salve Automatically allocated but may be manually overridden 0000 disable Louver functions None swing only swing and auto where applicable 0001 swing only 0004 all options page 31 TOSHIBEL 2 1 DNCODES Compressor on time Compressor minimum on time 0 5 minutes 1 4 minutes P P 0001 1 4 minutes 005
49. mp sensor is normal continues error is detected TA sensor check P C board Being Qut of place 1 Check heat exchanger sensor Indoor P C disconnection short circuit or Operation Displayed when Hop 2 When heat exchanger sensor is normal board etc migration of heat exchanger continues error is detected check P C board sensor TC sensor rin Displayed when LL Lock of indoor fan or trouble on gt 1 Check P C board Fd SEE All off error is detected 1 1 the indoor fan circuit 2 When P C board is normal check the motor Not Trouble on other indoor P C Operation Displayed when Renlace Board displayed UZ boards continues error is detected Indoor P C Dis played when 1 Check heat exchanger sensor TC All off board etc 13 sensor error 9 error is detected 2 Check P C board 1 When the outdoor unit never operate 1 Check connecting cable and correct if defective wiring Return serial signal is not sent to 2 Check 25 fuse of inverter P C board from operation Flashes when 3 Check 3 15A of inverter P C board started zs trouble is detected 2 To display Other block during operation 1 Defective wiring of s Operation on operation check compressor thermo operation and rit connecting cable 3 f continues signal and normal supply gas check gas leak also Operation or compressor status when signal 3 Unit operates normally dur
50. nnection or short of Stop Displayed when error is Ser DO Mea exenangertemp 0 Fot indoor heat exchanger sensor TCJ Automatic reset detected sensor 764 2 Check indoor P C board gt 1 Indoor heat exch t 25 e Coming off disconnection or short of Stop Displayed when error is Ge eat exchanger temp ensor indoor heat exchanger sensor TC Automatic reset detected board 04 Coming off disconnection or short of Stop Displayed when error is 1 Check outdoor temp Sensor TD outdoor temperature sensor TD detected 2 Check outdoor CDB P C board Coming off disconnection or short of Displayed when error is 1 Check outdoor temp Sensor TE TS 706 Stop outdoor temperature sensor TE TS detected 2 Check outdoor CDB P C board 708 Coming off disconnection or short of Operation Displayed when error is 1 Check outdoor temp Sensor TO outdoor temperature sensor TO continues detected 2 Check outdoor CDB P C board 1 Check indoor heat exch t e F10 Coming off disconnection or short of Stop Displayed when error is EACNANBRL SEMP indoor heat exchanger sensor TA Automatic reset detected check indoor board 1 Check ind EEPROM includi Indoor EEPROM error Stop Displayed when error is p d including F29 EEPROM access error Automatic reset detected socket insertion 2 Check indoor P C board 1 Check power voltage AC200V 20V Breakdown of compressor Displayed when error is 2 Overload
51. ntrol continued is displayed only on P30 the central control remote controller gt Central control Check the address setup veo Duplicate central control Operation L20 is displayed addresses were address continued duplicated Error detected by AI NET central control device Check code Outdoor 7 segment AI NET 8 Detected Error detection ET display central control RN Check code name Status LS Check item position remote position condition Check remote controller code Sub code controller E07 107 L03 L08 Check multiple network adaptors was detecred dien Check wire and miscabling of AI NET communication Operation 1 e remote controller only one 97 AI NET other indoor unit in system error continued the aroi was network adaptor can be bee connected to communication line of remote controller Check communication line Multiple network miscabling and power of indoor adaptors were unit 8 connected to Check communication X Y Duplicated network Operation 99 AI NET communication line terminals P of remote controller Check network adaptor P C board etected at centra Check the central controller Detected at central Check th tral controll controller side entral control remote controller troller sid Central control t troll etc 7 Operation Error of follower unit ui b7 AI NET Error in indoor group Check follower unit in the group
52. on of Other line unit it of other li Separate the cable between 20 outdoor of other line coon ees Unito d LE lines according to automatic E E nd C nnectiorrafandaai 4 VF uring All stop connecte when indoor address setup method in 2 automatic automatic address started Address setup of other line address In this model only one outdoor AT unit is provided to one Communication a sending error Transmission of other refrigerant line Be sure to E23 E23 15 I F All stop outdoor unit was unavailable check there is no between eis for 30 seconds or more communication connection outdoor units d with outdoor unit in the other refrigerant line Duplicated iocis Outdoor addresses manuall Note E25 E25 15 VF All stop Do not set up the outdoor follower address set up are duplicated address manually setup 01 Comp IPDU error 02 Fan 1 IPDU error Check connection of 03 Comp Fan 1IPDU error communication connector and M 2 one d IPDU Communication of each IPDU disconnection between IPDU E31 E31 I F communication All stop P C board in inverter box and I F P C board 07 All IPDU error or communication error between IPDU and I F P C board or outdoor I F P C board error error interrupted Check outdoor P C board I F IPDU Fan IPDU error Check external noise page 21 TOSHIBEL 2 1 CHECK CODE MiNi SMMS
53. ontrol including Check remote controller setup Remote Duplicated master remote Corresponding unit wireless both are setup E09 99 Check remote controller P C controller controllers only stops as master Header indoor hoard unit stops and other indoor unit is operating fe Communication error Corresponding unit There is any trouble in Indoor P C board failure E10 CF Unit between indoor P C board only stops power line assembly page 20 I TOSHIBEL 2 1 CHECK CODE MiNi SMMS Check Code i Outdoor 7 segment displa AI NET Detected Check code Wired 8 X Status Error detection condition Check item position remote Check central control position name controller code Sub code remote controller When indoor automatic address started other refrigerant circuit system 01 Indoor outdoor B A Setup the address again after DAN Automatic was setting automatic dd communication d All sto address disconnecting communication E12 D 02 between outdoors VF aderess start P with other refrigerant circuit es error When outdoor automatic communications system address started indoor automatic address was executed No Indoor unit is not found when corresponding indoor automatic address i i Check remote controller and E15 E15 42 indoor unit All stop start was set up moti during communication adaptor wirin
54. ontrol address 20 98 AI NET Duplicated central control All sto Duplicated central em 7 Indoor addresses P control addresses Check network adapter P C board In case of AI NET Check No of connected outdoor units Max 4 units per 1 system Cadet There were more Check communication line 128 128 46 VF Ua HEY All stop than four outdoor between outdoor units connected outdoor units units Check outdoor P C board I F error page 24 m TOSHIBEL 2 1 CHECK CODE MiNi SMMS Check Code Main remote controller Outdoor 7 segment display Check code Sub code AI NET central control remote controller Detected position Check code name Status Error detection condition Chech item position 129 129 01 Comp IPDU1 error 02 Fan 1IPDU error 03 Comp Fan 1 IPDU error 04 Fan 2 IPDU error 05 Comp Fan2 IPDU error 06 Fan 1 Fan2 IPDU error 07 All IPDU error on communication error between IPDU and I F P C board or outdoor I F P C board error CF VF IPDU quantity error All stop No Of IPDU units detected when power was turned on were less Check model setup for outdoor I F service P C board Check connection of UART communication connector Check IPDU fan IPDU and I F P C board error Note UART Universal Asynchronous Receiver Transmitter L30 L30 Detected indoo
55. oor Indo Indoor Outdoor Corresponding unit Indoor unit does not Check indoor address setup E04 4 Unit communication circuit error only stops receive communication Check inter unit cabling between Detected at indoor side from outdoor unit indoor and outdoor Check outdoor end terminal resistance setup SW30 2 Check the power supply of indoor unit Power ON Check connection of communication line between No of indoor When signal is not sent indoor and outdoor unite which for a certain period from Check connector connection for Decreased number of the indoor unit which has communication in indoor P C E06 E06 received 4 VF 2 All stop PS indoor units been used to send board signals E6 is normally Check connector connection for displayed communication in outdoor P C board Check indoor P C board failure Check outdoor P C board I F failure Indoor Outdoor Transmission from Check outdoor terminator resistor NS XE outdoor to indoor cannot setup SW30 2 E07 VF communication circuit error All stop m 1 continue for 30 seconds Check the communication Detected at outdoor side between indoor and outdoor Multiple indoor unit Check indoor address Duplicated address setup are Check the change of remote E08 E08 indoor 96 Indoor I F Duplicated indoor addresses All stop duplicated controller connection addresses Group individual after setup of indoor address In 2 remote controller F c
56. operation of refrigerating e 101 Sto cycle Display when error is detected P detected 3 Check current detection circuit at AC side 1 Trouble of compressor Compressor Compressor does not rotate lock etc Replace compressor e e 102 Over current protective circuit operates st Displayed when error is 2 Defective cabling of compressor after specific time passed when P detected Phase missing compressor had been activated 3 Phase missing operation of power supply 3 phase model 3 zat s 1 Compressor immediately stops even if Current detection circuit error restarted Check IPDU ide is hi i Displayed when error is e e H03 Current value at AC side is high even during Stop und 2 Phase missing operation of power compressor OFF detected Phase of power supply is missed supply Check 3 phase power voltage and cables e 103 Duplicated indoor master units Stop Displayed when error is 1 Check whether there is modification or detected remote controller connection There is a group line in individual indoor Displayed when error is Group Individual or not after power e L07 units Stop detected has been turned on finish of group configuration address check If group configuration and address are e 108 Unsetting of indoor group address Stop Displayed when erroris not normal when the power has been dete cted turned on the mode automatically shifts to address setup mode Resetting of address page 11
57. or 1 case Chec outdoor PMV clogging Compressor 1 case thermostat dx 204 creut leakage H04 H04 44 VF thermo operation All stop performed miscabling misinstallation of SV4 protective operation Check valve open status of indoor PMV Check 4 way valve error Check refrigerant shortage Check SV5 leak 1 all stop only in case of the header unit page 23 IN TOSHIBEL 2 1 CHECK CODE MiNi SMMS Check code i s gment Detected Error detection Wired display central control osition Check code name Status condition Check item position remote ead remote controller code Sub code controller Check full opening of service valve Gas liquid side Check outdoor PMV clogging Check SV2 circuit and SV4 circuit error Check low pressure Ps sensor Low pressure protective Low pressures pk 106 HOG 20 P All stop detected operation Check indoor air filter clogging operation lower than 0 02MPa Check valve open of indoor PMV Check refrigerant pipe clogging Check outdoor fan operating In heating mode Check refrigerant shortage Check 4 way valve error Reversed error Check indoor address LO3 96 indor Duplicated indoor center Corresponding Check the change of remote units unit only stops controller connection roup Individual after indoor group G Individual af
58. orm short circuit Replace compressor Outdoor LAT Displayed when Even if trying operation again all operations P C Fd Current detect circuit error All off error is tt stop immediately Replace P C board board detected m es oe out of owe Qu Displayed when 1 Check outdoor temp sensor TD n i or short circuit of outdoor temp 0 error is 3 Check Pe board sensor detected TIERES Displayed wh 117 Disconnection or short circuit of ISp3ye d 1 Check discharge temp Sensor TD discharge temp sensor Biber ADI 2 Check P C board ve detected Displayed when Position detect error over current protective Outdoor fan drive system error All off error is operation of outdoor fan drive system fan lock detected etc Replace P C board or fan motor 7 1 Check outdoor heat exchanger temp sensor Not T Outdoor heat exchanger temp Operation TE displayed i Sensor error continues X checkP C board Outdoor Displayed when When 20 seconds passed after startup position Compressor drive output error AS P C fi ON All off error is detect circuit error occurred Replace th lock missing etc Break down board detected compressor isi aia 1 Repeat Start and Stop with interval of pond 59 signa E n pen Flashes when approx 10 to 40 minutes Code is not s but it is trouble is displayed during operation Supply gas not sent from halfway detected on Check also
59. ow pressure sensor Ps MPa x 100 8 04 Inner part of register temp TC2 C x1 14 Suction temp TS C x1 s 05 Inner part of register temp TC1 C x1 15 Outdoor heat exchanger temp TE C x1 5 6 NOTET temp ec x1 16 Temp Liquid line TL ec x1 08 Inner part PMV angel of aperture Pulse x 1 10 E 17 Ambiente temperature TO C x1 Number of connected indoor units piece E 18 Overheating temp TU 1 c 5 Ob connected 5 10 19 1 1 10 5 units 2 5 8 2 oc Numberot gutdoor piece 1A Compressor 2 power 12 A 10 units g Od PS capacity of 5 10 1b PMV 1 2 aperture Pulse x 1 10 1d Compressor 1 2 ON OFF NOTE 3 1E Outdoor fan speed 0 031 1F Capacity outdoor unit PS x1 NOTE 1 Only a part of the indoor units were installed with a high pressure temp sensors This temperature is not displayed on other types NOTE 2 When the units are connected to a group only the data of the main indoor unit is displayed NOTE 3 Only compressor 1 is ON 10 Only compressor 2 is ON 11 Both compressors 1 and 2 are ON page 39 IB TOSHIBEL 2 1 CN CONNECTOR Overview CN Connector CN32 Ventilation control from RC TCB KBCN32VEE Operation status signal output Option output CN60 1 2 3 4 5 6 Cooling heating fan defrost TCB KBCN60OPE thermo ON
60. play section of the remote controller The check code is displayed while the air conditioner operates If the display has disappeared operate the air conditioner and check the error based upon the following Confirmation of error history Check code Indoor unit No in which an error occurred Confirmation of error history REMOTE CONTROLLER o 4 When a trouble occurred on the air conditioner the error history can SS be confirmed with the following procedure Up to 4 error histories are stored in memory This history can be confirmed from either operating status or stop status Procedure Description When pushing and buttons simultaneously for 4 seconds or more the below display appears If Service Check is displayed the mode enters in the error history mode 7 01 Error history order is displayed in code number window Check code is displayed in check code window Indoor unit address with error is displayed in UNIT No Every pushing temp set C 2 buttons the error histories stored in the memory are displayed in order The numbers in item code indicates item code 01 latest to 04 oldest CAUTION Do not push cL button because all the error histories of the indoor unit will be deleted After confirmation push button to return to the usual display page 16 TOSHIBEL 2 1 CHECK CODE SMMSi Testing methods
61. position control remote the receiver controller H Sub code controller loperation timer ready flash i 01 m 0 E Communication error between indoor and remote R mol amp controllar controller Detected at remote controller side E02 xd Remote controller sending error Remote controller Communication error between indoor and E03 d 97 e e Indoor unit H remote controller detected at indoor side i ndoor Outdoor communication circuit error E04 04 e e oO Indoor unit Detected at indoor side 5 E06 E06 Do indoor units which 04 8 e Decreased number of indoor units VF received signal normally 1 ndoor Outdoor communication circuit error E07 e e O Detected at outdoor side E08 E08 Duplicated indoor address 96 e Duplicated indoor address Indoor I F i E09 99 e e Duplicated master remote contollers Remote controller Communication error between indoor P C 5 10 25 e Indoor unit board assembly 01 02 Indoor Outdoor communication E12 E12 42 9 Automatic address start error VF 02 Between outdoors communication No corresponding indoor unit during automatic E15 E15 E 42 e o ponang 5 address 00 over capacity E16 E16 01 No of connected 89 9 6 No of connected indoor units over capacity VF units Communication error between indoor header E18
62. r address b6 Indoor Interlock in indoor unit form outside Corresponding unit only stops Outside error input terminal detected signal to CN80 for more 1 minute Outside device is connected to connector CN80 1 Check outside device error 2 Check indoor P C board Outside device is not connected to connector CN80 1 Check indoor P C board error 131 VF Extended IC Intergrated Circuit error Operation continues P C board I F parts error Check indoor I F P C board P01 11 Indoor Indoor fan motor error Corresponding unit only stops Check the lock of fan motor AC fan Check cabling P03 P03 1E VF Discharge temp TD1 error All stop Discharge temp TD1 exceeded 115 Check full opening of outdoor service valves Gas side liquid side Check clogging of outdoor PMV Check characteristics of TD1 sensor resistance value Check refrigerant shortage Check 4 way valve error Check leakage of 5 4 circuit Check SVA circuit Miscabling and misinstalation of SV4 Check leakage of SV5 circuit 704 P04 01 Compressor 1 side 21 VF Actuation of high pressure SW All stop High pressure SW actuated Check Pd pressure sensor error Check full opening of outdoor service valves Gas side Liquid side Check outdoor fan error Check outdoor fan motor error Check clogging of outdoor PMV Check c
63. ror Check capillary clogging of oil return circuit from oil separator Check TS sensor error Suction temp Check refrigerant shortage exceeded the Check full open of outdoor service judgement standard valves gas side liquid side oe 10 minutes Check outdoor PMV clogging Gas leak detection 50 TS error judgement Chec characteristics of TS1 01 TS condition AE VF condition All stop standard sensor resistance value temperature Check 4 way valve error In cooling operation Check leakage of SV4 circuit 60 or higher Check leakage of SV5 circuit In heating operation P15 P15 40 or higher Discharge Check refrigerant shortage temperature TD1 or Check outdoor PMV clogging ua 108 C Check characteristics of TD1 2 or higher for 10 sensor resistance value 02 TD condition AE VF Gas leak detection TD All stop minutes Check indoor air filter clogging condition Check pipe clogging Check SV4 circuit Valve leakage misinstallation Check mispiping of discharge gas suction gas main pipe Check full opening of outdoor service valves gas side liquid side Check clogging of outdoor PMV Check characteristics of TD2 Discharge i P17 P17 bb VF Discharge temp TD2 error All stop TD2 a Toi Check leakage of SVA circuit Check SV4 circuit Check leakage of SV5 valve circuit Check mispiping of discharge gas suction gas main pipe page 26 TOSHIBEL 2
64. s not turned on cables does not Automatic address cannot be completed Checkindoor P C board operate Check indoor EEPROM including socket insertion Phenomenon of automatic address repetition occurred Signal receiving of remote controller is defective 1 Check remote No communication with indoor master unit Stop controllerinterunit Disconnection of inter unit cable between Automatic restart Displayed when cables 01 2 remote controller and master indoor unit When there is error is detected Be Cheek remote detected at remote controller side center operation ontroller continues 3 Check indoor power cables 4 Check indoor P C board Stop Signal sending of remote Automatic restart controller is defective e e Signal sending error to indoor unit Displayed when 1 sending circuit Detected at remote controller side error is detected inside of remote center operation controller Replace continues remote controller 1 Check there are Stop multiple master units e e E09 Multiple master remote controllers are recognized sub nit Conf RUE Displayed when for 2 remote controllers Detected at remote controller side error is detected including wireless operation Master unit is one and others are sub units Duplicated indoor central addresses on 4 address setup 120 communication of central control system Stop Displayed When Or central control Detected by central controller
65. side Automatic restart error is detected system network DN 03 Error mode detected by central remote controller Flash Goon Wired Wireless sensor lamp displayed remote Diagnostic function controller Judgement and measures Operation Timer Ready Check code Cause of operation Status of 2 Condition conditioner il RE 605 Sending error central remote controller Operation continues Displayed when 1 Check communication error is detected line miscabling check power of indoor unit 2 Check communication U3 U4 terminals 3 Check network adapter P C board A Displayed when 4 Check central controller 606 Receiving error in central remote controller Operation continues Pati detected such as central control remote controller etc 5 Terminal resistance check connection interface SWO1 m m m 930 Differs according to error contents of unit with Continuation Stop Displayed when remote controller page 13 I TOSHIBEL 2 1 CHECK CODE DI S DI DI BIG Error Mode detected by LED on Outdoor P C Board RAV SM563AT E RAV SM803AT E RAV SM1103AT E RAV SM1403AT E RAV SP564AT E RAV SP804AT E RAV SP1104AT E RAV SP1404AT E SWS801 LED display in BIT 1 BIT 2 OFF When multiple errors are detected the latest error is displayed When LED display is O Go on there is the main cause of trouble on the objective part of control at CDB side and the unit stops When LED di
66. splay is Flash there is the main cause of trouble on the objective part of control at IPDU side and the unit stops When case thermostat operates the communication is interrupted on the serial circuit If continuing the case thermostat operation a serial communication error occurs because serial sending to the indoor unit is interrupted Check code LED display Nr Item Type B D800 red 0802 yellow D803 yellow 1 TE Sensor error F06 18 2 TD Sensor error F04 19 o o 3 TS Sensor error F06 18 e o 4 Sensor error F08 1B 5 Discharge temp error P03 1E e o o CDB Side 6 DC outdoor fan error P22 1A o o o e 7 Communication error between IPDU abnormal 129 1C o e e o stop 8 High pressure release operation 4 21 o o 9 EEPROM error o o e o 10 Communication IPDU No abnormal Stop e 11 IGBT short circuit protection P26 14 e 12 Detection circuit error P29 16 e IPDU Side 13 Current sensor error H03 17 e e 14 Comp Lock error 102 19 e e e e 15 Comp breakdown 103 1F e e e e Go off 69 Flash 5Hz lt lt Check code gt gt The check codes are classified into Type A and Type B according to the used remote controller Be sure to check the remote controller which you use Type A Neutral 2 cores type wired remote controller such as RB
67. ssor running not pumping Klixon tripped For cross wiring Frost condition Indoor fan low speed no outdoor unit operation Gas charge pipe blockage Indoor air flow TC Sensor For cross wiring 08 Indoor water level Indoor unit operates outdoor unit does not Lift pump operation Condensed drain for blockage Floats switch operation break on rise 99 No communication Indoor to Rem Con System stops Interconnecting cables Indoor is set up as a master Only one master in a group 18 TE Sensor open circuit System stops Sensor Resistance 20 12 5 25 10 TE Sensor short circuit System stops Sensor Resistance 20 12 5 25 10 19 TL or TD Sensor open circuit System stops Sensor Resistance TL 20 C 12 5 TD 23 53 k 25 C 10 k TL or TD Sensor short circuit System stops Sensor Resistance TL 20 C 12 5 k TD 23 C 53 k 25 C 10 k 21 High Pressure Trip System stops Gas Charge quantity amp quality Pipe blockages Air flows 1E High Discharge Temperature System stops Gas Charge quantity amp quality TE sensor Indoor unit air flow page 33 IN TOSHIBEL 2 1 TROUBLESHOOTING MMS R407C Fault Codes MMS R407C STANDBY DISPLAY Over capacity Abnormal phase connection Indoor drain overflow alarm Remote controller Indoor unit 2 gt Remote control
68. t circuit Low pressure sensor Ps short circuit Pressure sensor Pd Ps miswiring Discharge temp TD1 protective operation Discharge temp TD2 protective operation Low Hz time discharge temp TD1 protective operation Suction temp TS protective operation High pressure Pd protective operation Low pressure Ps protective operation Fixed speed 1 high pressure SW short circuit Fixed speed 2 high pressure SW short circuit Fixed speed 1 IOL OCR short circuits Fixed speed 2 IOL OCR short circuits Inverter IOL short circuit Mg SW deposit controlling display Outdoor unit power source phase order miswiring Extension IC EEPROM short circuit Indoor outdoor error Indoor outdoor communication short circuit No Of connected indoor units over capacity Connected indoor units over capacity Outdoor unit back up operation prevented Reduction of No Of server outdoor units No Of server outdoor units over capacity Server outdoor address incorrect Outdoor master unit incorrect Server outdoor unit error Oil temp K1 sensor short circuit Oil temp K2 sensor short circuit Oil temp K3 sensor short circuit Oil level low detection Oil temp TK1 detection error Oil temp TK2 detection error SV3C valve blockage detection SV3C valve leakage detection PMV refrigerant leakage detection Indoor address undefined Outdoor address undefined Missing of R phase gg 08 18
69. t d address setup Line address setup is _ x duplicated against Duplicated indoor 104 104 96 I F All stop the outdoor unit in Check the line address address 0 different refrigerant pipe system Duplicated indoor units Indoor units with Check display of indoor unit 105 ET 96 with priority Displayed All stop priority were on indoor unit with duplicated priority 054 dfindogr Duplicated indoor units Indoor units with Check display of indoor unit with LOG LOG nitswith 96 VF with priority Displayed All stop priority were priority and outdoor unit riorit on the unit other than duplicated P Y indoor unit with priority At least one indoor Group line in individual Correspondin annon L07 99 Indoor 4 8 group existed in the Check indoor address indoor unit unit only stops Vna individual indoor units Check indoor address 08 108 99 Indoor group address Corresponding Address was not yet Note After installation this code is unset unit only stops setup displayed when the power is firstly turned on Corresponding Indoor unit capacity 09 46 Indoor Indoor capacity unset Set up indoor capacity DN 11 unit only stops was unset On the I F P C board for service jumper Check model set tdoor I F L10 L10 88 VF Outdoor capacity unset All stop line was not cut Mi ieu 9v P C board A ssy for service according to the model 3 Check central c
70. x 2m COM DC12V Alarm output RELAY DC 12V Alarm both Indoor Outdoor alarm page 50 TOSHIBEL 2 1 CN CONNECTOR CN70 TCB KBCN70OAE 1 Error input Default DN2A 20002 at shipment DN2A 0001 External error input When signal is input error symbol is displayed Indoor unit does not stop 2 OV Com NOTE No CN70 connector in RAV SM KRT MMK AP 2H 1 Blue White CN70 Option error input Indoor P C Board max 2m Error input COM OV Relay coil signal DN 2A 0001 at shipment 0002 When signal is input remote Controller displays the symbol AN This symbol is displayed even when RC is off Air conditioner does not stop page 51 TOSHIBEL 2 1 CN CONNECTOR CN73 TCB KBCN73DEE 1 Demand input Indoor Unit forced thermo OFF 2 OV Com Red 1 Blue 2 White CN73 Demand input Indoor P C Board max 2m oD Demand input COM OV Relay coil signal When signal is input indoor unit is in Thermo off status forcibly page 52 TOSHIBEL 2 1 CN CONNECTOR CN80 TCB KBCN80EXE 1 DC12V Common for Pin 3 COM 2 3 Outside error input After signal is input continuously 3 sec Forced thermo off 1 min Error code 130 Interlock form outside and stop the operation This unit only Green 1 Red Blue CN80 Outside error input

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