Service Manual
Contents
1. tou ele E sa 8 T ay LI sad 3 i Lewe 9 REN Teas bor lawe a E Ra KIATO42 a 5 pis Byun inner 1087167 104 24328380884 3 IC UPDTSSIG6G2PIN TN BF m m OWI N TRAN sa 5V n mie w ERN 104 B lt 5 DIS dor 101 x w en 85 Es ues 106 poo Rs i hook amp mons NP a POST 7 biz ders NPN Ro ge T m m E a ey S Disi WI40218G a LEDE AUTO HE zie RCE amm ev ET me PT av Po 5 RIS K von K Qi 014 9014 INL 1 m 2 jou IM 3 an 4 INS 5 ING ATIVSWING an w C12 1072005 104 aa p as E un n tu MM RYS VAN INH Tu LOA2. The outdoor fan motor speed control in the cooling mode T3 32 High speed 30 Low speed 8 3 Dehumidifying mode 8 3 1 Indoor fan speed at low speed 8 3 2 Protection is same as cooling mode 8 4 Heating mode 17 Condition Compressor Outdoor fan Temp up T Ts 1 On On T lt Ts 1 Off Off Temp down T gt Ts On On T lt Ts Off Off Auto fan Condition T Indoor Temp Setting Temp Indoor fan speed Temp up T 1 C Low 1 C T 4 C Med T25 C High Temp down gt 4 High 1 C T 4 C Med T lt 1 C Low Anti freezing control to indoor evaporator Condition Compressor Outdoor fan Temp Time Temp up T gt TE6 On On T lt TE6 gt 4 Minutes Off Off Temp down T gt TE5 On On T lt TES gt 4 Minutes Off Off Condenser high temp protection only for heat pump Temp Condition Compressor Temp up T Off T lt TE10 On Temp down gt TE11 Off lt TE11 On 8 4 1 Generally the 4 way valve is open in heating mode but it is closed in defrosting mode 8 4 2 Generally the outdoor fan is turned off with the on off action of compressor in heating mode except for the defrosting mode or the end of defrost 8 4 3 Action conditions of compressor at heating mode compressor must run for 4 minutes after starting and then judge temperature Meanwhile other protections are still valid Condition Compressor Outdoor fan Room temp up T Ts 4 Off Off T
3. 14 5245 1 c Ti a SUNISO 4650 950 YDK36 4C Welling 150 2u F 450V 1200 1120 1080 1000 1080 1020 960 880 48 45 42 1080X330X225 1165X445X320 17 21 YDK53 6D Welling 150 Model Brand Indoor fan motor Input c m Model Bad Input Cd Indoor air flow Hi Mi Lo Indoor noise level Hi Mi Lo 3 En Model Brand Outdoor fan nput moto lt T 0 3 of g 3 3 a o 5 z A a c ols Z o D 8 l amp o Speed 800 Outdoor air flow 2500 Outdoor noise level 845X695X335 970X770X395 56 60 R22 1450 A ao 3 5 a 3 ing W H D I 0 3 Outdoor unit U o A 5 A Refrigerant type Design pressure U w iquid side Gas side mm inch 29 53 216 0 Z 9 Q o 5 Refrigerant piping Connection wiring Plug type Thermostat type Operation temp Ambient temp 18 45 Application area 40 56 Qtyiper 20 40 40 HQ 60 132 142 ZIZ o lt lt oio gt 210 EXE 9 la g 2 als 5 S o 5 lt 3 ls Electronic control 17 30 N 1 The noise date is base on hemi anechoic chamber during actual operation these values are normally somewhat different as a result of ambient condition 3 Dimensions 3 1 Indoor unit DSA 24
4. ANGLCOOL ANGLHEAT ANGLOFF THDEFROST TMDEFROST TLDEFROST 22 9 Characteristic of temp sensor Temp Resistance KQ Temp C Resistance KQ Temp C Resistance KO 10 62 2756 17 14 6181 44 4 3874 9 58 7079 18 13 918 45 4 2126 8 56 3694 19 13 2631 46 4 0459 7 52 2438 20 12 6431 47 3 8867 6 49 3161 21 12 0561 48 3 7348 5 46 5725 22 11 5 49 3 5896 4 44 23 10 9731 50 3 451 3 41 5878 24 10 4736 51 3 3185 2 39 8239 25 10 52 3 1918 1 37 1988 26 9 5507 53 3 0707 0 35 2024 27 9 1245 54 2 959 1 33 3269 28 8 7198 55 2 8442 2 31 5635 29 8 3357 56 2 7382 3 29 9058 30 7 9708 57 2 6368 4 28 3459 31 7 6241 58 2 5397 5 26 8778 32 7 2946 59 2 4468 6 25 4954 33 6 9814 60 2 3577 7 24 1932 34 6 6835 61 2 2725 8 22 5662 35 6 4002 62 2 1907 9 21 8094 36 6 1306 63 2 1124 10 20 7184 37 5 8736 64 2 0373 11 19 6891 38 5 6296 65 1 9653 12 18 7177 39 5 3969 66 1 8963 13 17 8005 40 5 1752 67 1 830 14 16 9341 41 4 9639 68 1 7665 15 16 1156 42 4 7625 69 1 7055 16 15 3418 43 4 5705 70 1 6469 23 Exploded View Parts for DSA 241L 220 240V 60Hz Indoor Unit 24 Indicator for LED Quanlity Sale code 13518111001 BOM code 2113029215 Remark Panel Ass y 13528111001 2113079316 air filter 13528111002 2113079315 Air cleaner 10109121226 2113010212 A
5. K28177 8 CABLE DAEWOOELEC PRINTED DATE AUG 2006
6. Os IEEE TO OUTDOOR UNIT WIRING DIAGRAM OUTDOOR UNIT BLUE WHITE PART NAME OUTDOOR CONTROL COMPRESSOR PRESSOR CAPACITOR DOOR FAN DOOR FAN CAPACITOR 5 NAY TERMINAL TERMINAL AC CONTACTOR RENT INDUCTOR TRANSFORMER CN1 GN11 PCB SOCKETS XP1 XS1 CONNECTORS RT3 PIPE TEMPERATURE SENSOR TO INDOOR UNIT POWER SUPPLY 10 7 troubleshooting The following tables will help to find where error happened LED on indoor unit For models adopting electrical function Operation Timer Defrosting Auto lamp Failure phenomenon lamp lamp lamp Over current protection of the compressor AW n occurs 4 times Indoor room temp sensor is open circuit or E i X x x short circuit Temp sensor on indoor evaporator is open no a 2 x X X X circuit or short circuit Temp sensor on outdoor condenser is open circuit or short circuit without for cooling only X X X models Outdoor unit protects outdoor temp sensor P a X X Se phase order etc EEROM error X Xx X bid Indoor unit communication err X X X bid X Extinguish x Flash at 5Hz NOTE For cool only model the defrosting lamp is replaced with fan lamp but malfunction display remains Currentprotection LED indicates Checkthe indoor air filter Checkthe outdoor condenser Checkthe position If wrong the unit wil
7. instructions the switch on No Is there beep from No Checkthebattery Checkthe power the unitwhen using of the remoter supplier remoter Yes 7 Check thedisplay Checkwiring Replace the Yes Does the unit run in board display board Forced Cool mode N Does the voltage o Replace the main No betweeninput Checkthe soft PCB board terminatesof starter transformeris correct Does the voltage betweenoutp ut terminatesof Replace the transformer transformeris correct Yes No Does the power transfer to the Yes e display board isplay board Abnormalnoise from the indoor unitj Checkthe Yes Doesithappenwith Yes Doesithappenin No Does itjusthappen Yes It is because swing motor auto swing Fan Only mode inthe beginning of of the heat cooling or heating No mode Check the Check the fan swing louver motor rub between plastics parts Itisnormal No Check the input and output pipe Check the cross flow fan Recycle the ref rige rant and recharge Replace the bear Abnormalnoise from the outdoor unit Checkthe Yes Dothefan bladerub Yes Doesithappen in motor with the shroud Cool mode No No Checkthe Check the fixing nuts Check the capillary fan blade of outdoor unit Check the Recycle therefrig e Check the compressor rant and recharge motor supporter PROBLEM
8. lt Ts 4 On On Room temp down T lt Ts 3 On On T gt Ts 3 Off Off 8 4 4 Indoor Fan actions at heating mode Indoor Fan can be set at HIGH MID LOW AUTO by using a remote controller Anti cold wind function 1 Condition Indoor fan speed T Indoor exchanger temp Indoor exchanger temp up T lt TE1 Off TE1 lt T lt TE2 Low speed T gt TE2 Setting fan speed Indoor exchanger temp down T gt TE3 Setting fan speed TE4 lt T lt TE3 Low speed T gt TE4 Off Anti cold air protection 2 when the room temp satisfy the setting temp 8 5 8 5 1 T evaporator pipe sensor temp Indoor fan speed Room temp up T TE1442 C Low speed or stop gt TE14 2 C Setting speed Room temp down T TE14 Setting speed T TE14 Stop after 15 seconds Low speed Auto wind Condition Indoor fan speed T Indoor Temp Setting Temp Room temp up T 2 C Med speed T22 C Low speed Room temp down T gt Low speed T 0 C Med speed Indoor evaporator high temperature protection Condition Compressor Outdoor fan T2 Indoor exchanger temp Indoor exchanger temp up T TE15254 C On On high speed TE15 T TE8 On On low speed TE8 lt T lt TE7 On Off T gt TE7 Off Off Indoor exchanger temp down T gt TE9 Off Off T lt TE9 On On Defrosting mode Conditions of defrost Defrosting start
9. 1L 330 3 2 Outdoor unit DSA 241L 01 5 LI iii cL j OOUU 0000 1 l je W li 1415 560 1 3 EJ Ute 4 Refrigeration cycle diagram INDOOR UNIT OUTDOOR UNIT 4 CHECK VALVE Heating Model only Ww LIQUID SIDE 09 CAPILLARY TUBE HEAT HEAT EXCHANGE EXCHANGE EVAPORATOR CONDENSER REVERSING VALVE Heating Model Only COOLING HEATING 5 Capacity table 5 1 DSA 241L SUMMER OUTDOOR TEMPERATURE DRY Indoor u 252C 30 35 40 45 50 Conditions Total capacity kW Sensitive capacity kW Input kW Total capacity kW Sensitive capacity kW Input kW Total capacity kW Sensitive capacity kW Input kW Total capacity kW Sensitive capacity kW Input kW 6 Schematic diagram and wiring diagram 6 1 Schematic diagram
10. D HEAT N 5 HEAT_N RY6 HEAT N LOAD HEAT L i HEAT im HEAT L DI IN400798 42V 7805 svaci anv as as M COMP 4704716 1 SIN S2RM as 1 2 96 ir 39330 EDI c L e 104 5 16K RIO Ou LGV EK EOUIZ v RH DK 17 104 Hon 4148 D pus 16 42 104 pe Cap fe 014 4007 x W NPN 2s x Du las mi pee 0 330 e B71 250V_ d gs a Ly Br s a mwan 2E v 6 2 Wiring diagram 6 2 1 Cooling only DSA 241L WIRING DIAGRAM INDOOR UNIT UN 1 FUSE 3 15A 250V CODE PART NAME UNITI MAIN CONTROL PCB UNIT2 DISPLAY INDOOR FAN FAN CAPACITOR SWING SWING MOTOR TRANSI TRANSFORMER RTI ROOM TEMPERATURE SENSOR RT2 PIPE TEMPERATURE SENSOR S WAY TERMINAL CNI CN11 PCB SOCKETS XP2 X82 CONNECTORS AG ANION GENERATOR Es
11. Not operating Check the input and the output on transformer Replace if Transformer failure failure Indoor PCB failure Replace after checked failure Cross flow fan failure xn po Ee ue oose screws Tighten them Indoor abnormal Worn bearings Replace after checked failure noise Replace the motor if knocking sounds continue when 0 running or loose or the motor hums or noise appears to be internal while running Motor failure Fan blade failure Replace the fan blade if cracked out of balance or partially missing per tu t Loose screws Tighten them Replace the motor if knocking sounds continue when Outdoor abnormal Motor failure running or loose or the motor hums or noise appears to be noise internal while running Replace the compressor if sounds coming from inner of the Compressor failure compressor Remove the cabinet and carefully rearrange tubing not to Cop bing contact cabinet compressor Display board or indoor PCB failure Replace the display board If it is still false replace the PCB Remote control Battery failure Check the voltage of battery Replace batteries if the voltage failure is lower than 2 3V Normally the remote control is not easy to damage If the Remote control failure above two methods are not effectual replace the remote control Check leakage Recycle the refrigerant Correct Lack of refrigerant recharge if there is any leakage in the refrigerant system A Check the mod
12. S M DSA241L001 Service Manual Split System Air Conditioner Model DSA 241L V Caution In this Manual some parts can be changed for improving their performance without notice in the parts list So if you need the latest parts information please refer to PPL Parts Price List in Service Information Center DA WOO pa ELECTRONICS AUG 2006 Contents Vi ED 02 VENE 0 eile RT SE PW W 03 3 DIMENSIONS k day ket e TI T 04 4 Refrigeration cycle 06 Oy Capacity dies n vx Esa dE geene 07 6 ne Lo dax vac Fa i 08 7 Troubleshooting kb Eia dt 11 8 Electronic TUNCHON arena sts et aed oi e ee e a A7 9 Characteristic of temp sensor 23 1 Features 1 1Compact design 1 2LED display 2 Specification DSA 241L 220 230V 60HZ 24000 2670 12 1 9 0 2 6 Power supply W Q 8 lt m 2 5 2 5 E D m ES ol 18 le c 5 5 5 5 5 5 E a R Btu w h W W Btu h nput Q OP Moisture Removal Max input consumption Max current Starting current a A Model Type Brand PH360X3CS 3KUU1 Rotary TOSHIBA 24990 2430 D Q lt Compressor nput gt ocked rotor 61 66
13. ctric box for some models the capacitor is on main PCB and replace the capacitor or main PCB if not within 10 of manufacturer s rating Replace the motor if the speed is not within 10 of manufacturer s rating but not because of the capacitor Check the tubes for reasons of leakage Recycle the Less refrigerant refrigerant correct the leakage points recharge Regulate the flow if capillary tube is blocked Make the Capillary tube evaporating temperature appropriate if the evaporator is frosted Room structure Outdoor fan motor Insufficient indoor fan motor cooling or heating The inlet and outlet valve of the compressor is damaged making the low pressure connected with the high pressure Compressor The refrigerating system is difficult to produce high pressure and low pressure Replace the compressor after checking for the reason Reduce if over loaded FLATE g CS IOW pressure des with the high pressure The refrigerating reverse valve system is difficult to produce high pressure and low pressure Replace the reverse valve after checking for the PROBLEM CAUSE REMEDY ED failure Replace the display if checked failure No display on indoor unit ey OREO RUS Push the button to turn the display on Check the voltage Call an electrician if not within the limit Check the terminals Repair and correct if loose emperature setting Check and adjust the temperature setting Mode setting C
14. de Cooling The set temperature rise 1 C per hour Two hours later the set temperature will maintain as a constant and the air circulation is kept at low speed and the air condition will stop work after 7 hours Heating The set temperature decrease 1 C per hour Two hours later the set temperature will maintain as a constant and the air circulation is kept at low speed and the air condition will stop work after 7 hours Cold air proof function takes priority over all 8 8 Manual operation 8 8 1 8 8 1 1 8 8 1 2 8 8 1 3 Manual operation is controlled by touching buttons and divided into force cooling and forced auto mode It transfers between these two modes by pressing the buttons the cycling order of the button press is Remote mode Forced cooling Forced Cooling In forced cooling mode the remote signal is not accepted The compressor is unconditionally turned on after 30 minutes cooling operation whose fan mode is set as low the A C operates in the forced auto mode under the requirements of the forced auto mode During the start up and operation all of the following protecting functions work 3minutes start up delay protection overload protection outdoor protection evaporator Protection against low temperature If any of the protection functions the comparative protecting action is executed The forced cooling mode is closed by one touch on the button meanwhile the operation light is off the buzzer buzzes lasts for 1 s
15. econds then turns to be closedown status 20 8 8 2 Forced Auto 8 8 2 1 Remote control signal can be received in forced auto mode When receiving the signals the forced auto mode will be canceled and the A C changes to remote control status and performs operation as the signals indicates 8 8 2 2 The system performs control according to the remote control auto mode with a set temperature of 24 c 8 9 Timer 24 hours timer on or off 8 10 Protecting Function 8 10 1 Compress with a delay of 3 minutes 8 10 2 Sensor open and break protection 8 10 3 EEPROM error protection 8 10 4 Current protection function Condition Indoor fan Compressor Outdoor fan Remark Current up I lt RESTORE On On On IRESTORE SIS Iran On On Off Heating mode Low speed On On Cooling mode lean lt 1 lt 15 Off Off After 5 Minutes 6 Off Off After 3 Seconds Current Ismin lt I lt 6 Off Off After 3 Seconds down lean lt 1 lt 15 Off Off After 5 Minutes IRESTORE SIS Iran On On Off Heating mode Low speed On On Cooling mode I lt RESTORE On On On 8 11 Auto restart Function In case of a sudden power failure this function automatically sets the unit to previous settings before the power failure when power returns 21 Models and Parameters DSA 241L Model I3SEC 14A ISMIN 20A IFAN 22A IRESTORE IDEFROST TE7 TE8 TE9
16. heck and adjust the mode setting No cooling or Soft st rter module failure Check the module and the capacitor connected to the heating module Replace if failure Reverse valve solenoid Check the reverse valve solenoid coil Replace the coil if coil short open or damaged If the reverse valve is blocked the heating mode will not Reverse valve perform Replace the reverse valve after checking the reason Water drainage failure Check the drainage pipe and repair if failure The indoor unit is incorrect A Correct the installation if not correct Water drops from installed indoor unit Drainage pipe blocked ka In TOOM IS tts normal if the humidity in the room is over 85 Wiringfailire Check wiring Correct if wrong wiring or loosen Check wiring Correct if the commucication wire is not THEME shielded wire or twisted with other wires Outdoor PCB failure Replace if the LED is not on uua Replace if failure Insufficient Indoor PCB failure Replace the PCB if the photon coupling on indoor PCB is cooling or heating failure Indoor PCB failure Replace after checked failure 8 Electronic Control Principle of Large Cooling Capacity Split Model 8 1 Fan only mode Fan speed is high mid low Auto 8 2 Cooling mode The 4 way valve is closed at cooling mode The action of the compressor and the outdoor fan T Room temp Ts Setting temp
17. in control board including Program chip 13821111005 2133079129 13407111026 2130073660 Wire clamp for power cord 10121121234 2113070033 Cover for E parts box 15021111017 2113079249 Remote Controller 11608111003 2335506565 Holder Remote Controller 10718121009 2113139022 connector for watering 11609121003 2110102011 seal 31009321021 2272009001 Copper nut TLM B02 10909121013 2160032001 Copper nut TLM DO4 5 5 gt gt gt 25 11324113804 2160032003 Exploded View Parts for Model DSA 241L 220 240V 60Hz Outdoor Unit 26 Part Name Clamp for front net Quantity oo Sale code 10112121801 BON code Remark 2113511801 Front net 10118121801 2124550017 Front clapboard 10924121801 2124550030 Propeller fan 10118121804 2114550002 Fan Motor 13521311801 2240041637 Holder for fan motor 10118121809 2124550020 Foam over holder for motor 10118121807 2224550001 Front right clapboard 10118121803 2124551101 gt Chassis 10122113803 2124550022 Compressor 10122123804 2140061720 PH360X3CS 3KUU1 Separating board 10118111806 2123530551 Little Handle 10830121811 2115029006 Cover 10118121827 2124550031 Condenser 13521111801 2153549096 Left c
18. ir cleaner holder 10109121225 2113010217 Screw cap 13528111003 2113079313 Panel frame assy display board holder 13528111004 13518111007 2113079317 2113029159 ON BON gt display board assy 13518111008 2333029078 Window cover for repairing Air out frame assy 15021111006 13821111002 2113079250 2113079320 Horizontal louver up 13528111006 2113079568 Horizontal louver down 13528111007 2113079569 Air out frame 13528111010 2113079567 Drain Hose 10118121223 2110109002 Grille holder oO Al Al Al Al Af Al Al Al ANA 10321121006 2113079145 Vertical louver A 13528111012 2113079570 Louver motor 10105111047 2240020004 evaporator 10924121003 2153079031 Indoor temp sensor 15021111014 2243079040 Evaporator temp sensor 10109121242 2243069051 Bearing holder 10321111008 2273079001 Cross flow fan assy 10321111009 2110029010 Fixing part for motor 10321111013 2113079045 Fan motor 13521311001 2240040720 Chassis 15021111015 2113079242 Installation Plate Connecting pipe clamp 10321111011 10321111015 2123079017 2123079016 Fan motor capacitor 50309121808 2240119015 Wire joint 5p Transformer 10124121203 10118121232 2230145023 2230099003 E Parts box 15021111016 2113079200 Ma
19. l and wiring of temp result in current sen sor all of the m prote ction not temp Checkspeed Yes Doesindoorheat Yes D oes it occur in No Does outdoor heat Yes Checkthe of indoor exchanger frosted Cool mode exchanger frosted drainage motor sys tem of No No out door unit Does the outdoor Yes It is normal under Yes Does the indoor Check speed temp over 48 C that ambient temp temp low than 10 C of outdoor motor No No Check theover Checkthe solenoid current protector of coil of reverse valve Recycle the compressor refrigerant and recharge Check the soft Check the soft starter mould starter mould Checkthe over Replace the current protector of main PCB board compressor Replace the Replace the compressor mainPCB board Replace the re verse Recyck the refrige valve rant and recharge Indoor Outdoor Units Communication Protection Is the L amp N connections between No indoor and outdoor units correct Reconnect correctly Yes Is the communication connection good Reconnect correctly Yes Replace the outdor PCB then runthe mac hine the communication protection relie ved Yes It means that the malfunction fromindoorunit Replace the indoor PCB The unit does not operate Does the power LED No Checktheelectrical light after turning source Perform Yes DotheLEDlamps Yes the related indicates ERR
20. lapboard 10924121808 2124550032 Rear Net 10924121809 2114550004 Rear right clapboard 10118113804 2123549024 Big Handle 10118121817 2114550003 Installation plate for valves 10118113805 2123500018 Water collector 10118121832 2113529005 Capacitor Clamp 10112121814 2120010002 Compressor capacitor 10122123801 2240100805 Fan motor capacitor 10109121819 2240110351 Wire joint 11812113810 2230145021 Washer for wire joint 10112121817 2113500004 Clamp for wiring 10118121823 2124540027 Installation board for E parts 13821111803 2123549049 Contactor 10121121806 2230085004 Wire joint for multiplexer 10121121809 2230145035 Main control board 13528111802 2133549001 Transformer 11018121010 2230090080 High Pressure Valve Ass y 10124111815 2163549418 Liquid pipe valve 10124121812 2160074223 Low Pressure Valve Ass y 10122113804 2163549312 Low Pressure Valve 10124121814 2160072219 Copper nut TLM B02 10909121013 2160032001 Copper nut TLM D04 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 27 11324113804 2160032003 OG DA VOO ELECTRONICS DAEWOO ELECTRONICS CORP 686 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA TELEX DWELEC
21. s when either of the following T3 lower than 0 c lasts for more than 40 minutes provided that the time period when the temperature is lower than 3 consecutively reaches 3 minutes Calculate from the end of latest defrost evaporator high temp protection only closes outdoor fan with 18 the compressor still running Add up to 90 minutes 8 5 2 Conditions of defrost ending Defrosting ends when either of the following The time gets to 10 minutes T3 gt 20 c 8 5 3 Remark when the evaporator pipe sensor temp more than TE16 The indoor fan start to run 8 6 8 6 1 8 6 2 8 6 3 8 7 Time sequence of the whole defrosting procedure is as follows Defrost 10or 6minutes Compressor 4 way Valve Outdoor Fan Indoor Fan Auto mode When running in automatic mode the air conditioner automatically selects one of the following operation modes cooling heating or ventilation according to the difference between room temp TA and set temp TS TA TS Operation mode TA TS gt 2C Cooling 1 CSTA TSS 2 C Air only TA TS 1 C Heating air only for cooling only type At auto mode the indoor fan blows automatically in selected mode One mode should be carried out for at least 15 minutes once selected If the compressor cannot start for 15 minutes reselect the operation mode according to the room temp and set temp or reselect when the setting temp changed Economic mo
22. ule and the capacitor connected to the Compressor Soft starter module failure An protection module Replace if failure Overcurrent protector Check the resistance of compressor overcurrent protector failure Replace if failure Outdoor PCB failure Replace after checked failure PROBLEM CAUSE REMEDY Replace after checked failure circuli of temperature Connector failure or loose Repair or replace the sensor Outdoor PCB failure Replace after checked failure Replace after checked failure evap temp sensor open or short Connector failure or loose Repair or replace the sensor Indoor PCB failure Replace after checked failure Soft starter module failure re low voltage module Replace if failure protection GENS b o nid nit ndersized Determine if the unit is sized for the area to be cooled or heated oe ee Clean or replace if restricted Take proper measures to make the door and windows sealed well if gap is found Air flow Clean or remove if any barrier is found to block the inlet outlet wind flow of the unit Sunlight Add a awning if the outdoor unit is exposed to the sunlight Check the fan capacitor on outdoor power control board and replace the board if not within 10 of manufacturer s rating Replace the motor if the speed is not within 10 of manufacturer s rating but not because of the capacitor For electrical function 2 3 models Check the fan capacitor in indoor ele
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