Sharp AE-X7FR User's Manual
Contents
1. ORANGE 9 Abnormal Thermistor or four way valv RECEIVER DISPLAY zi CN4 SR 1 11 Abnormal outdoor fan motor pgaRD BOARD UNIT 13 Rotation error of the compressor or comgressor lock jonas jenos entos 14 Abnormal PAM voltage and PAM clock signal m 3 Ir 2 17 Open circuit of serial signal line SUB BI COMPUTER n 18 Short circuit of serial signal line BOARD UNIT cy493 CN101 19 Abnormal fan motor of indoor unit Indication of the abnormal condition LEA LED indicator will blink if the set is in abnormal condition TOP 2 BOTTOM em 2 Outdooa unit 2 1 AE X7FR AE X9FR The voltage is high at electrolytic capacitor on outdoor unit For mentenance discharge at CAUTION to prevent electric shock In case that fuse FUS has been fused the voltage is kept high at C9 10 TERMINAL TERMINAL 29 A OUTDOOR UNIT p AOR CONTROL BOARD UNIT r z 1 Qr l m 00 IN OU D B INDOOR UNIT THERMISTOR COMP TEMP THAOR THERMISTOR HEAT EXCHANGER TEMP THAN THERMISTOR OUTDOOR TEMP THA BK THERMISTOR SUCTION TEMP THS YE THERMISTOR 2WAY VALVE TEMP POWER ELECTROLYTIC CAPACITOR 420V 7501F EXPANSION VALVE 217 tag SUPPLY UNIT THERMISTOR LED INDICATION SELF DIAGNOSIS ON OUTDOOR UNIT LED BLINKING LN DANGER HIGH VOLTAGE No JED Indication pattern Abnormal comments le LED ums on O wm x Abno2. 2 6 2 4 2 2 2 0 Cooling capacity kW 25 30 35 40 Outside air temp C 2 AY XP9FR 2 1 At Cooling 900 800 700 600 Input W 3 2 3 0 2 8 2 6 2 4 Cooling capacity kW 25 30 35 40 Outside air temp C AYXP7FR 1 2 At Heating 600 500 400 Input W 3 0 2 5 2 0 1 5 Heating capacity kW 5 0 5 7 10 Outside air temp C 2 2 At Heating 800 600 Input W Heating capacity kW 3 5 3 0 2 5 2 0 5 0 5 7 10 Outside air temp C AYXP7FR 3 AY XP12FR 3 1 At Cooling 3 2 At Heating 1200 1200 1100 em 1000 1000 amp 000 900 Eo 40 45 gt 3 5 3 8 8 4 0 g 36 8 3 5 o E 19A 2 30 8 32 8 25 25 30 35 40 5 0 5 7 Outside air temp C Outside air temp 9C
3. 3 15 AYXP7FR Status of Indication Malfunction Content of diagnosis Inspection location method Remedy indoor by LED1 No dis outdoor on out played on units door unit main unit 2 display sec tion 1 Main Sub Main category Sub category cate cate gory gory Indoor 11 11 0 Outdoor unit DC Outdoor unit DC fan 1 Check connector CN3 of 1 Correct the installa outdoor times fan rotation error the outdoor unit DC fan tion units in motor for secure installa complete tion shutdown 2 Checkthe outdoor unitfan 2 Replace the outdoor motor for proper rotation unit fan motor 3 Check fuse 3 Replace the outdoor unit control PWB assembly 4 Outdoor unit control PWB 4 Replace the outdoor unit control PWB assembly Indoor 13 13 0 DC compressor Compressor startup 1 Check the colors red 1 Correct the installa outdoor times error white orange of the com tion units in pressor cords for proper U Red V White W complete connection PWB side Orange shutdown compressor side 1 Compressor rota 2 Check if the IPM terminal 2 Replace the outdoor tion error resistance values are uni unit control PWB 120 energizing form assembly error 3 No abnormality found in 3 Replace the outdoor above inspections 1 and unit control PWB 2 assembly 4 No abnormality found in 4 Replace the compres above inspections 1 sor through
4. 3 2 way valve ther 2 assembly mistor short circuit error 3 13 AYXP7FR Status of Indication Malfunction Content of diagnosis Inspection location method Remedy indoor by LED1 No dis outdoor on out played on units door unit main unit 2 display sec tion 1 Main Sub Main category Sub category cate cate gory gory Indoor 2times 2 0 Cycle tempera Compressor high 1 Check the outdoor unit air 1 Ensure unobstructed outdoor ture temperature error outlet for blockage air flow from the out units in door unit air outlet complete 2 Check if the power supply 2 Connect power sup shutdown voltage is 90 V or higher at ply of proper voltage full power 3 Check the pipe connec 3 Charge the specified tions for refrigerant leaks amount of refrigerant 4 Measure resistance of the 4 Replace the outdoor outdoor unit compressor unit compressor ther thermistor mistor assembly TH1 Approx 53 at 25 C 5 Check the expansion 5 Replace the expan valve for proper operation sion valve coil expan sion valve or outdoor unit control PWB assembly Indoor 1 Temporary stop due Temporary stop for cycle pro unit in to compressor dis tection operation charge overheat 3 Outdoor 2 Temporary stop due Temporary stop for cycle pro unit in to outdoor unit heat tection tempo exchanger overheat rary stop 3
5. IC JC JL i IC C JL i I IC IC n Ir I Ir TIT I Ir I Il E Ir I Ir TIT 1 Ir I D m I I I IIT I I I I Ai 790 198 278 58 _18 5 A LJ N NEA 220 2 Outdoor unit AYXP7FR 3 WIRING DIAGRM 1 Indooa unit LED INDICATION FOR SELF DIAGNOSIS INDOOR UNIT ___________________ lt 66037 gt OUTDOOR UNIT 1 TERMINAL BOARD 1 L TERMINAL TERMINAL Temperature BOARD R BOARD Indicator Abnormal contents POWER ion SUPPLY 3 1 Short circuit of the Thermistor SINGLE 2 Overheat error compressor and cycle PHASE v 5 Open circuit of the Thermistor TH FU1 SERIAL MES 6 Abnormal DC current PRENMISIOR E zm ma Ee PIPE TEMP x 7 Abnormal AC current
6. 3 Temporary stop due Temporary stop for cycle pro to outdoor unit heat tection exchanger overheat 8 4 Temporary stop due Temporary stop for cycle pro to 2 way valve tection freeze 3 Indoor 3times 3 0 Dry operation Temporary stop due Temporary stop for cycle pro unit in to dehumidifying tection operation operation 3 Outdoor unit in tempo rary stop Indoor Q 5times 5 0 Outdoor unit Heat exchanger 1 Check connector CN8 of 1 Correct the installa outdoor thermistor thermistor open cir the outdoor unit ther tion units in open circuit cuit error mistor for secure installa complete tion shutdown 1 Outside tempera 2 Measure resistance of out 2 Replace the outdoor ture thermistor door thermistors TH1 to unit thermistor assem open circuit error TH5 bly 2 Suction thermistor 3 Check the lead wires of 3 Replace the outdoor open circuit error thermistors TH1 through unit thermistor assem TH5 on the outdoor unit bly control PWB for open cir cuit 3 2 way valve ther 4 No abnormality found in 5 Replace the outdoor mistor open circuit above inspections 1 unit control PWB error through 3 assembly 4 Discharge ther mistor open circuit error 3 14 AYXP7FR volume is abnormally low 2 Checkthe 4 way valve for proper operation 3 check to see compressor
7. 1 sec 06 sec 1 1 sec J U ON OFF c The content of diagnosis is transferred to the indoor unit via serial communication but it does not trigger a complete shutdown operation 3 Flashes in 2 sec intervals normal On Off Flashes times in 0 2 sec intervals When LED1 on the outdoor unit flashes in 2 sec intervals the outdoor unit is in normal condition Status of Indication Malfunction Content of diagnosis Inspection location method Remedy indoor by LED1 No dis outdoor on out played on units door unit main unit 2 display sec tion 1 Main Sub Main category Sub category cate cate gory gory Indoor Nor 0 0 Normal outdoor mal units in flash operation ing Indoor itime 1 0 Outdoor unit Heat exchanger 1 Measure resistance of the 1 Replace the outdoor outdoor thermistor thermistor short cir outdoor unit thermistors unit thermistor assem units in short circuit cuit error TH2 to TH5 Approx 4 4 bly complete kQ at 25 C shutdown 1 Outside tempera 2 Check the lead wire of the 2 Replace the outdoor ture thermistor outdoor unit thermistor for unit thermistor assem short circuit error torn sheath and short cir bly cuit 2 Suction thermistor 3 No abnormality found in 3 Replace the outdoor short circuit error above inspections 1 and unit control PWB
8. 3 Indoor 14 14 0 Outdoor unit PAM over voltage 1 Check the AC power sup 1 Connect stable power outdoor times PAM error ply voltage for fluctuation supply units in Compressor rota 2 No abnormality found in 2 Replace the outdoor complete tion error above inspection 1 unit control PWB shutdown assembly Indoor 1 PAM clock error 1 Check the PAM clock for 1 Replace the outdoor outdoor proper input unit control PWB units in assembly operation Indoor 17 0 Wires between Serial open circuit 1 Check the wires between 1 Connect stable power unit in units units supply operation 2 Check voltage between 2 Replace the outdoor Outdoor Nos 1 and 2 on the unit control PCB unit in indoor outdoor unit termi assembly complete nal boards shutdown Outdoor unit does 1 Check the wires between 1 Correct the wiring not turn on due to units erroneous wiring 2 Check the outdoor unit 2 Replace the fuse out fuse door unit control PCB assembly 3 Check 15 V 13 V and 5 V 3 Replace the outdoor voltages on the PWB unit control PCB Check resistance between assembly IPM terminals 4 Check pins No 5 and 7 of 4 Replace the outdoor connector CN3 of the out unit fan motor door unit fan motor for short circuit 5 Outdoor unit control PCB 5 Replace the outdoor unit control PCB board e 18 0 Serial short circuit 1 Check the wires between 1 Correct the wiring units 1 Seria
9. The content of the self diagnosis memory can be called out and displayed on the seven segment display section on the indoor unit The error data cannot be called out for display by the LED on the outdoor unit X If the power cord is unplugged from the AC outlet or the circuit breaker is turned off the self diagnosis memory loses the stored data a The self diagnosis display function of the indoor unit indicates the content of diagnosis by showing the error main category number and the error sub category number alternately in 1 second intervals on the seven segment display section of the indoor unit Example of self diagnosis display on indoor unit Compressor high temperature error Error main category Error sub category g I0 G 3 b The self diagnosis display function of the outdoor unit indicates the error information by flashing LED1 on the outdoor unit according to the con tent of self diagnosis The self diagnosis display function of the outdoor unit is active only for about 3 to 10 minutes after self diagnosis is performed during operation and the display returns to normal condition after this display period The content of self diagnosis cannot be called out by the self diagnosis display function of the outdoor unit Example of self diagnosis display on outdoor unit Compressor high temperature error 1sec 1 sec 0 6 sec 1 sec 0 6 sec 1 sec 1 sec 1 sec 0 6 sec
10. type is correct Status of Indication Malfunction Content of diagnosis Inspection location method Remedy indoor by LED1 No dis outdoor on out played on units door unit main unit 2 display sec tion 1 Main Sub Main category Sub category cate cate gory gory Indoor 6times 6 0 Outdoor unit DC DC overcurrent error 1 IPM continuity check 1 Replace the outdoor outdoor unit control PWB units in assembly complete 2 Check the IPM and heat 2 Correct the installa shutdown sink for secure installation tion tighten the Screws 3 Check the outdoor unit fan 3 Replace the outdoor motor for proper rotation unit fan motor 4 No abnormality found in 4 Replace the outdoor above inspections 1 unit control PWB through 3 assembly 5 No abnormality found in 5 Replace the compres above inspections 1 sor through 4 1 IPM pin level error Check the IPM is attached Replace the outdoor correctly to the outdoor unit control PWB unit control PWB assembly Indoor Q 7times 7 0 Outdoor unit AC AC overcurrent error 1 Check the outdoor unit air 1 Ensure unobstructed outdoor outlet for blockage air flow from the out units in door unit air outlet complete 2 Check the outdoor unit fan 2 Check the outdoor unit shutdown for proper rotation fan motor 1 AC overcurrent error 1 IPM continuity check 1 Replace the outdoor in OFF status unit control PWB assembly 2 AC maximum
11. 0cc VG74 Refrigerant system Evaporator Louver Fin and Grooved tube type Condenser Corrugate Fin and Grooved tube type Control Expansion valve Refrigerant R410A 830g De lce system Micro computer controled reversed systems Noise level High dB A 37 45 at cooling Low dB A Soft dB A 28 Fan system Drive Direct drive Air flow quantity High m3 min 8 0 23 2 at cooling Low m3 min 6 8 Soft m3 min 5 5 Fan Cross flow fan Propeller fan Connections Refrigerant coupling Flare type Refrigerant tube size Gas Liquid 3 8 1 4 Drain piping mm O D 18 Others Safety device Compressor Thermal protector Fan motors Thermal fuse Fuse Micro computer control Air filters Polypropylene net Washable Net dimensions Width mm 790 730 Height mm 278 540 Depth mm 198 250 Net weight kg 10 33 2 AY XP9FR AE X9FR MODEL INDOOR UNIT OUTDOOR UNIT ITEMS AY XP9FR AE X9FR Cooling capacity Min Max kW 2 64 0 9 3 0 Heating capacity Min Max kW 3 1 0 9 4 8 Moisture removal at cooling Liters h Electrical data Phase Single Rated frequency Hz 50 Rated voltage V 230 Rated current xx Cool A 3 7 1 0 4 8 Min Max Heat A 3 5 0 9 6 1 Rated input Cool 780 200 960 730 160 1400 Power factor xx Coo
12. 4 8 1 0 8 0 Rated input xx Cool 1090 210 1300 Min Max Heat Ww 1030 180 1900 Power factor xx Cool 96 95 Heat 96 93 Compressor Type Hermetically sealed rotary type Model 5RS102XBE01 Oil charge 320cc RB68A or Freol Alpha 68M Refrigerant system Evaporator Louver Fin and Grooved tube type Condenser Corrugate Fin and Grooved tube type Control Expansion valve Refrigerant R410A 1030g De lce system Micro computer controled reversed systems Noise level High dB A 40 48 at cooling Low dB A Soft dB A 28 Fan system Drive Direct drive Air flow quantity High m3 min 9 8 26 7 at cooling Low m3 min 8 5 Soft m3 min 6 9 Fan Cross flow fan Propeller fan Connections Refrigerant coupling Flare type Refrigerant tube size Gas Liquid 3 8 1 4 Drain piping mm O D 18 Others Safety device Compressor Thermal protector Fan motors Thermal fuse Fuse Micro computer control Air filters Polypropylene net Washable Net dimensions Width mm 790 730 Height mm 278 540 Depth mm 198 250 Net weight kg 10 37 NOTE The condition of star s marked item are ISO5151 1994 E contition T1 AYXP7FR 2 EXTERNAL DIMENSION 1 Indoor unit C IC IC IC JC L JC JC JC JC JC J C JC JC JC JC JC J
13. AYXP7FR SHARP SERVICE MANUAL S6512AYXP7FR T SPLIT TYPE ROOM AIR CONDITIONER INDOOR UNIT OUTDOOR UNIT mopeLs AY XP7FR AE X7FR Jd AY XP9FR AE X9FR AY XP12FR AE X12FR In the interests of user safety Required by safety regulations in some countries the set should be restored to its original condition and only parts identical to those specified pone be used CONTENTS CHAPTER 1 SPECIFICATION GENERAL TROUBLESHOOTING CHART 3 6 1 SPECIFICATION 1 1 6 MALFUNCTION PARTS CHECK METH 2 EXTERNAL 1 4 Ordena ear a ee oe 3 8 3 WIRING DIAGRM ens 1 5 7 OUTDOOR UNIT CHECK METHOD 3 10 4 ELECTRICAL 1 6 8 TROUBLESHOOTING GUIDE 3 13 CHAPTER 2 EXPLAMATION OF CIRCUIT AND OP CHAPTER 4 REFRIGERATION CYCLE ERATION 1 FLOW FOW 4 1 1 BLOCK 1 5 2 1 2 STANDARD 4 1 2 MICROCOMPUTER CONTROL SYSTEM 2 3 3 TEMPERATURE AT EACH PART AND 8 FUNCTION 2 8 PRESSURE IN 3 WAY VALVE 4 1 4 PERFORMANCE 4 2 CHAPTER 3 FUNCTION AND OPERATION OF PRO TECTIVE PROCEDURES CHAPTER 5 DISASSEMBLING PROCEDURE 1 PROTECTION DEVICE FUNCTIONS AND 1 DISASSEMBLY OF INDOO
14. HERMISTOR LED INDICATION SELF DIAGNOSIS ON OUTDOOR UNIT TED BLINKING ZAN DANGER HIGH VOLTAGE TED Indication pattern Abnormal comments lelunumm Pa pe taton pater __ O Siow flashing 1 time for 1 second Tte micro computer s GND line which Ce signal line Abnormal outdoor fan motor L Duck fasting G ines for second control the thermistor etc share the Ham Short circuit of the Thermistor dox Rotation error of the compressor Td Et error same line of 320V line Do not touch Ox 2 times Dverheat error compressor and cycle mes compressor lock Ease it 5 times Open circuit of the Thermistor Abnormal PAM voltage and rinnn nnn M E 3i Abnormal DE current aaa PAM clock signal of o E Do not earth oscilloscope etc as it 7 times Abnormal AC current may become damaged 1 5 AYXP7FR 8 TROUBLESHOOTING GUIDE 1 Self Diagnosis Function and Display Mode To call out the content of the self diagnosis memory hold down the emergency operation button for more than 5 seconds when the indoor unit is not operating The number of indications displayed by the LEDs on the outdoor unit differs from that for the 2001 cooling unit models for detailed display of mal function information The display of malfunction No differs from that of the 2001 cooling unit models To show detailed malfunction information two types of numbers flash alternately example 21 lt 0
15. R UNIT 5 1 OPERATIONS 3 1 2 DISASSEMBLY OF OUTDOOR UNIT 5 7 2 AIR CONDITIONER OPERATION IN THERMISTOR ERROR 3 3 REPLACEMENT PARTS LIST 3 THERMISTOR TEMPERATURE CHAR ACTERISTICS 3 5 4 HOW OPERATE THE OUTDOOR UNIT 3 6 Parts marked with are important for maintaining the safety of the set Be sure to replace these parts with specified ones for maintaining the safety and performance of the set SSS 2 wc c cH c c o cQ I eee ry This document has been published to be used SHAR P CORPO RATION for after sales service only The contents are subject to change without notice AYXP7FR CHAPTER 1 SPECIFICATION 1 SPECIFICATION 1 AY XP7FR AE X7FR MODEL INDOOR UNIT OUTDOOR UNIT ITEMS AY XP7FR AE X7FR Cooling capacity Min Max kW 2 1 0 9 2 5 Heating capacity Min Max kW 2 4 0 9 3 4 Moisture removal at cooling Liters h Electrical data Phase Single Rated frequency Hz 50 Rated voltage V 230 Rated current xx Cool A 2 5 1 0 4 1 Min Max Heat A 2 4 0 9 4 5 Rated input xx Cool 530 200 760 Min Max Heat Ww 510 160 1100 Power factor xx Cool 96 92 Heat 96 92 Compressor Type Hermetically sealed rotary type Model DA89X1F 23F Oil charge 37
16. cur 1 Check the outdoor unit air 1 Ensure unobstructed rent error outlet for blockage air flow from the out door unit air outlet 2 Checkthe outdoor unitfan 1 Checkthe outdoor unit for proper rotation fan motor 3 AC current defi 1 Check if there is an open 1 Replace the outdoor ciency error circuit in the secondary unit control PWB winding of the current assembly transformer of the outdoor unit control PWB 2 Check if the refrigerant 2 Charge the specified volume is abnormally low amount of refrigerant 3 Check if the refrigerant 3 Correct refrigerant flows properly clogs 2 way valve 3 way valve pipe expan sion valve Indoor 9times 9 0 Outdoor unit Thermistor installa 1 Check to make sure out 1 Correct the installa outdoor cooling heating tion error or 4 way door unit thermistor TH2 tion units in switchover valve error heat exchanger and TH5 complete 2 way valve are installed shutdown in correct positions 2 Measure resistance of 2 Replace the ther thermistors TH1 and TH5 mistor assembly 3 Check the 4 way valve for 3 Replace the 4 way proper operation valve 4 No abnormality found in 4 Replace the outdoor above inspections 1 unit control PWB through 3 assembly 3 Torque control error 1 Check if the refrigerant 1 Change the specified amount of refrigerant Replace the 4 way valve Replace the compres Sor with the correct part
17. l 96 92 Heat 96 91 Compressor Type Hermetically sealed rotary type Model DA89X1F 23F Oil charge 370cc VG74 Refrigerant system Evaporator Louver Fin and Grooved tube type Condenser Corrugate Fin and Grooved tube type Control Expansion valve Refrigerant R410A 830g De lce system Micro computer controled reversed systems Noise level High dB A 39 45 at cooling Low dB A Soft dB A 28 Fan system Drive Direct drive Air flow quantity High m3 min 8 6 23 3 at cooling Low m3 min 7 3 Soft m3 min 5 5 Fan Cross flow fan Propeller fan Connections Refrigerant coupling Flare type Refrigerant tube size Gas Liquid 3 8 1 4 Drain piping mm O D 18 Others Safety device Compressor Thermal protector Fan motors Thermal fuse Fuse Micro computer control Air filters Polypropylene net Washable Net dimensions Width mm 790 730 Height mm 278 540 Depth mm 198 250 Net weight kg 10 33 AYXP7FR AYXP7FR 3 AY XP12FR AE X12FR MODEL INDOOR UNIT OUTDOOR UNIT ITEMS AY XP12FR AE X12FR Cooling capacity Min Max kW 3 5 0 9 3 8 Heating capacity Min Max kW 4 0 0 9 6 0 Moisture removal at cooling Liters h Electrical data Phase Single Rated frequency Hz 50 Rated voltage V 230 Rated current xx Cool A 5 0 1 1 8 2 Min Max Heat A
18. l erroneous wir 1 Check the wires between 1 Correct the wiring ing units 3 16 AYXP7FR Status of Indication Malfunction Content of diagnosis Inspection location method Remedy indoor by LED1 No dis outdoor on out played on units door unit main unit 2 display sec tion 1 Main Sub Main category Sub category cate cate gory gory Indoor x 19 0 Indoor unit fan Indoor unit fan error 1 Check the indoor fan 1 Replace the indoor fan outdoor motor for proper rotating motor units in operation Check fan complete lock shutdown 2 Check the lead wire of the 2 Replace the indoor fan indoor fan motor for open motor circuit 3 Check CN1 of the indoor 3 Correct the installa unit fan motor for secure tion of CN1 of the installation indoor fan motor 4 No abnormality found in 4 Replace the indoor above inspections 1 unit control PWB through 3 Indoor x 20 0 Indoor unit con EEPROM data error EEPROM read data Replace the indoor outdoor trol PCB error unit control PWB units in operation Indoor x 88 Control and dis Communication 1 Check for disconnected 1 Insert connectors cor outdoor play PCB error connector between control rectly or replace con units in PCB and display PCB trol PWB operation and open circuit in lead wires 2 Check that control PCB 2 Replace control PWB outputs signa
19. ls correctly 3 17 Malfunction indications due to erroneous wiring during air conditioner installation Inter unit wiring error mode Symptom 1 Indoor unit relay Turns On momentarily then turns Off E Malfunction diagnosis display 18 1 1 1 Indoor Outdoor unit N N unit 2 2 2 Indoor unit relay Relays turns Off after about 30 minutes Malfunction diagnosis display None 1 1 Displays 18 0 when malfunction code is called out Indoor Outdoor unit N unit 2 3 Indoor unit relay Relays turns Off after about 30 minutes Malfunction diagnosis display None 1 1 Displays 18 0 when malfunction code is called out Indoor Outdoor unit N unit 2 4 Indoor unit relay Turns On momentarily then turns Off Malfunction diagnosis display 18 1 1 1 Indoor Outdoor unit LN LN unit 2 2 5 Indoor unit relay Turns On momentarily then turns Off Malfunction diagnosis display 18 1 1 1 Indoor Outdoor unit N N unit 2 2 3 18 AYXP7FR 4 PERFORMANCE CURVES NOTE 1 2 3 4 Indoor fan speed Hi Vertical adjustment louver 45 Horizontal adjustment louver front Indoor air temp Cooling 27 C Heating 20 C Power source 230V 50Hz 1 AY XP7FR 1 1 At Cooling 600 500 400 300 Input W
20. rmal Thermistor or four way valve a eee ee sni The micro computer s GND line which ie Abnormal signal line 8 x11times Abnormal outdoor fan motor Example No 3 Overheat control the thermistor etc share the 2 x Ttime Short circuit of the Thermistor Rotation error of the compressor Compress ue pis error same line of 320V line Do not touch 3L x 2times verheat error compressor and cycle x T3times or compressor lock pi y the control circuit components as it Li x 5times Open circuit of the Thermistor PAM voltage and unn run Tesult in electrical shock hazard 5 x f times Abnormal DC current PAM clock signal o o o o _ Do not earth oscillscope etc as it B x Ttimes Abnormal AC current may become damaged 2 2 AE X12FR CC044 The voltage is high at C9 10 electrolytic capacitor on outdoor unit For mentenance discharge at C9 10 CAUTION to prevent electric shock In case that fuse FUS has been fused the voltage is kept high at 09 10 TERMINAL TERMINAL 7 OUTDOOR UNIT en CONTROL BOARD UNIT Qizi err 1201 4201 rr TOF T50uF INDOOR UNT CE EE THA RE THERMISTOR COMP TEMP TH2 OR THERMISTOR HEAT EXCHANGER TEMP _ TH3 GN THERMISTOR OUTDOOR TEMP THA BK THERMISTOR SUCTION TEMP THS YE THERMISTOR 2WAY VALVE TEMP POWER 09 10 ELECTROLYTIC CAPACITOR 420V 7501F EXPANSION VALVI Tr SUPPLY UNIT cng T
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