LG ABNW366KSA1 Service Manual Download | Manualshive

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Ceiling Duct type Air Conditioner

Cycle Troubleshooting Guide

■

Error Indicator

• The function is to self-diagnoisis airconditioner and express the troubles identifically if there is any trouble.
• Error mark is ON/OFF for the operation LED of evaporator body in the same manner as the following table.
• If more than two troubles occur simultaneously, primarily the highest trouble fo error code is expressed.
• After error occurrence, if error is released, error LED is also released simultaneously.
• To operate again on the occurrence of error code, be sure to turn off the power and then turn on.

Indoor Error

00

No Error

ON

01

Indoor Room themistor error

CH01

OFF

02

Indoor in-piping sensor error

CH02

OFF

03

Remote controller error

CH03

OFF

04

Drain Pump/Float switch error

CH04

OFF

05

Communcation error between in and out

CH05

OFF

06

Indoor Out-Piping sensor error

CH06

OFF

Error code

Description

INV TPS

Error Code

Indoor
Status

Outdoor Error

Error Code

Description

INV TPS

LED 1

(Red)

LED 2

(Green)

Indoor Sta-

tus

21

DC Peak (IPM Fault)

2times

1time

OFF

22

CT 2(Max CT)

2times

2times

OFF

23

DC Link Low Volt.

2times

3times

OFF

24

L_P/Heater Sink

2times

4times

OFF

25

Low voltage / Over voltage

2times

5times

OFF

26

DC Comp Position Error

2times

6times

OFF

27

PSC Fault Error

2times

7times

OFF

28

DC Link High Volt

2times

8times

OFF

32

D-Pipe High (INV)

3times

2times

OFF

33

D-Pipe High (Normal)

3times

3times

OFF

40

CT Sensor (Open/Short)

4times

O

OFF

41

INV. D-PipeTh Error(Open/Short)

4times

1time

OFF

44

Outdoor air Th Error(Open/Short)

4times

4times

OFF

45

Cond. Pipe Th Error(Open/Short)

4times

5times

OFF

46

Suction Pipe Error(Open/Short)

4times

6times

OFF

47

Const D-pipe Th Error(Open/Short)

4times

7times

OFF

53

Signal error (Indoor

↔

Outdoor)

5times

3times

OFF

60

EEPROM Check Sum Error

6times

O

OFF

61

Cond. Pipe High

6times

1time

OFF

62

Heatsink High

6times

2times

OFF

63

Cond. Pipe Low

6times

3times

OFF

65

Heatsoml Th error (Open/Short)

6times

5times

OFF

Cycle Troubleshooting Guide

Self-diagnosis Function

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Summary of Contents for ABNW366KSA1

Page 1: ... www lgservice com BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL ONLY FOR AUTHORIZED SERVICE PERSONNEL MODELS ABNW366KSA1 ABUW366KSA1 ABNW426KSA1 ABUW426KSA1 ABNW486KSA1 ABUW486KSA1 ABNW606LTA1 ABUW606LTA1 ABNW366KSA3 ABUW366KSA3 ABNW426KSA3 ABUW426KSA3 ...

Page 2: ...Diagram 15 Wiring Diagram 17 Electronic control device 21 Functions 22 Operation Details 24 Installation of Indoor Outdoor Unit 27 Connecting Pipes to the Outdoor Unit 38 Checking the Drainage 38 Connecting Cables between Indoor Unit and Outdoor Unit 39 Air Purging of the Connecting Pipes and the Indoor Unit 42 Group Control 43 Two Thermistor system 43 Cycle Troubleshooting Guide 44 Exploded View ...

Page 3: ... Be sure to follow the instruction Do not use a defective or underrat ed circuit breaker Use this appli ance on a dedicated circuit There is risk of fire or electric shock For electrical work contact the dealer seller a qualified electri cian or an Authorized Service Cen ter Do not disassemble or repair the product There is risk of fire or elec tric shock Always ground the product There is risk of...

Page 4: ...ge to the product Be sure the installation area does not deteriorate with age If the base collapses the air condi tioner could fall with it causing property damage product failure and personal injury Do not let the air conditioner run for a long time when the humidity is very high and a door or a window is left open Moisture may condense and wet or damage furniture Take care to ensure that power c...

Page 5: ... is risk of electric shock or fire Stop operation and close the window in storm or hurricane If possible remove the product from the window before the hurricane arrives There is risk of property damage failure of product or electric shock Do not open the inlet grill of the prod uct during operation Do not touch the electrostatic filter if the unit is so equipped There is risk of physical injury el...

Page 6: ...he product To avoid vibration or water leakage 90 Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods It may cause a problem for your neighbors Use two or more people to lift and transport the product Avoid personal injury Do not install the product where it will be exposed to sea wind salt spray directly It may cause corrosion on the product ...

Page 7: ...lfunction or damage Do not insert hands or other objects through the air inlet or outlet while the product is operated There are sharp and moving parts that could cause personal injury Do not drink the water drained from the product It is not sanitary and could cause seri ous health issues Use a firm stool or ladder when cleaning or maintaining the prod uct Be careful and avoid personal injury Rep...

Page 8: ...0Btu h 6 Electric Range 1 9 Electric Standard V Hz Phase 1 115 60 1 2 220 60 1 3 208 230 60 1 5 200 220 50 1 6 220 240 50 1 7 100 50 60 1 8 380 415 50 3 9 380 60 3 A 220 50 3 B 208 230 60 3 C 575 60 3 D 440 460 60 3 E 265 60 1 F 200 50 60 1 7 Chassis A Z Name of tool of unit 8 LG OEM Brand A Z L LG Brand M 1st OEM Brand G 2nd LG Brand N 2nd OEM Brand 9 Function A Z 10 Serial No 0 9 Basic A Low Amb...

Page 9: ...s Yes Yes 3 8 9 52 3 8 9 52 3 8 9 52 5 8 15 88 5 8 15 88 3 4 19 05 1040 350 560 1040 350 560 1040 350 560 870 1060 320 870 1060 320 900 1165 370 37 37 37 80 80 105 Power Source Ø V Hz Cooling Capacity kcal h BTU h W Input W Heating Capacity kcal h BTU h W Input W Rated Load Amp Cooling A Heating A Air Volumn Cooling H M L L S Heating H M L Refrigerant R410A g Drain Hose In Dia mm Main Cable No X m...

Page 10: ...tional Optional Yes Yes Yes Yes Yes Yes 3 8 9 52 3 8 9 52 3 8 9 52 3 4 19 05 3 4 19 05 3 4 19 05 1040 350 560 1040 350 560 1120 400 580 900 1165 370 900 1165 370 750 1517 650 37 40 51 105 105 120 Power Source Ø V Hz Cooling Capacity kcal h BTU h W Input W Heating Capacity kcal h BTU h W Input W Rated Load Amp Cooling A Heating A Air Volumn Cooling H M L L S Heating H M L Refrigerant R410A g Drain ...

Page 11: ...A1 ABNW426KSA3 ABNW486KSA1 ABNW606LTA1 1040 1120 1120 350 400 400 560 580 580 282 305 305 712 712 712 282 327 327 868 935 935 131 171 171 250 234 234 210 239 239 170 183 183 161 165 165 934 1014 1014 37 57 57 60 69 69 22 22 22 79 84 84 972 052 1052 514 533 533 Unit mm D F LIQUID LINE CONN TYPE MODEL SUCTION LINE 3 8 FLARE 3 4 FLARE 3 8 FLARE 3 4 FLARE 3 8 FLARE 3 4 FLARE X Y 23 23 a 103 77 C G E b...

Page 12: ...6KSA1 ABUW366KSA3 76 5 4 holes for anchor bolts 320 Unit mm 64 160 160 550 1060 360 340 320 1030 870 4 2 3 1 Number Name Descripition 1 Liquid side service valve mm Ø9 52 2 Gas side service valve mm Ø15 88 3 Air discharge grill 4 Control Cover Outdoor Unit ...

Page 13: ...L3 Gas side 3 way valve Control cover Unit mm Liquid side 3 way valve 4 hole for anchor bolts W mm 900 H mm 1 165 D mm 370 L1 mm 460 L2 mm 45 L3 mm 410 L4 mm 1 135 L5 mm 30 L6 mm 550 L7 mm 175 L8 mm 175 L9 mm 112 L10 mm 120 L11 mm 83 mm Ø9 52 mm Ø19 05 ABUW426KSA1 ABUW426KSA3 ABUW486KSA1 ABUW486KSA1 Model Dimensions ...

Page 14: ...et Air outlet Service Panel Unit mm Knockout hole For the control wiring the power supply refrigerant connecting pipe Knockout hole For the control wiring the power supply refrigerant connecting pipe 153 15 690 40 1444 28 100 220 1512 670 730 153 806 500 bolt hole 700 bolt hole ...

Page 15: ...5 88mm Field liquid piping Ø9 52mm Solenoid Valve Accumulator Solenoid Valve AB W366KSA1 AB W366KSA3 Drier L E V Check Valve Check Valve Oil Seperator Low Pressure S W Receiver Solenoid Valve Constant Compressor Inverter Compressor Accumulator Heat Exchanger Reversing Valve Thermistor Thermistor Thermistor Fan Fan Fan Heat Exchanger INDOOR UNIT Thermistor OUTDOOR UNIT Refrigerant Flow Cooling Heat...

Page 16: ... E V Accumulator Heat Exchanger Inverter Compressor Constant Compressor 1 Constant Compressor 2 Oil Seperator OUTDOOR UNIT Check Valve Thermistor Thermistor Thermistor Reversing Valve Fan Thermistor Thermistor Fan Heat Exchanger INDOOR UNIT Thermistor Refrigerant Flow Cooling Heating Field gas piping Ø19 05mm Field liquid piping Ø9 52mm AB W606LTA1 ...

Page 17: ...OOM CN PIPE2 CN PIPE1 CN REMO CN ZONE TO INDOOR UNIT 1 L 2 N 3 4 5 FUSE BR BL RD GN YL CONNECTOR NUMBER LOCATION CN POWER AC POWER SUPPLY CN MOTOR FAN MOTOR OUTPUT CN D PUMP DRAIN PUMP OUTPUT CN DISP RF REMOTE CONTROL CN FLOAT FLOAT SWITCH INUT CN ZONE ZONE CONTROL OUTPUT CN CC CENTRAL CONTROL OUTPUT CONNECTOR NUMBER LOCATION CN PIPE1 PIPE SENSOR CN PIPE2 DISCHAGE PIPE SENSOR CN REMO REMOTE CONTRO...

Page 18: ...ALVE CN HEATER CN PRESS CN OIL S CRANKCASE HEATER SV LOW PRESS SWITCH OIL SEPERATOR RY C COMP GND 1 GND 2 BL BR RD CONSTANT COMPRESSOR C R S BL BR BR BR BK BR BL GN YL BL L N POWER SUPPLY TO INDOOR UNIT LEV CN LEV1 CN TH2 CN TH1 CN TH3 CN TH4 DISP I SUG DISP C AIR PIPE H SINK CN CENTRAL CN JIG PC CN WRITER 3854A20354T OPTION 3 L 4 N 5 1 L 2 N Notes BL RD YL BLUE RED YELLOW BK OR GN YL BLACK ORANGE...

Page 19: ... COMP OIL SEPERATOR INV LOW PRESSURE SWITCH OPTION CRANKCASE HEATER 4WAY VALVE 4WV SV Power Supply To Indoor Unit 3854A20354P 2 N 1 L 2 N 3 A 3 B AIR PIPE H SINK SUC DISP_I DISP C TH1 TH3 TH4 BL WH WH OR BL BK BR YL OR BL BK BR YL REACTOR BL BR BL BR BR BR BR BR R S C BR BL BL BL RELAY 3 4 CN POWER RY COMP RY S CAP BL RD RD T B BR GN YL GN YL BR BK BK BK NOISE FILTER FUSE 250V 20A YL 3 4 Notes BL ...

Page 20: ...54A20354X NOTE 2 N 1 L 2 N 3 A 3 B FM INV TH FAN MOTOR INVERTER THERMISTOR CS CR RY BL BLUE BK BLACK BR BROWN OR ORANGE RD RED WH WHITE YL YELLOW GN YL GREEN YELLOW CAPACITOR FOR STARTING CAPACITOR FOR RUNNING RELAY SV CONS T B SOLENOID VALVE CONSTANT TYPE TERMINAL BLOCK AIR PIPE H SINK SUC DISP_I DISP C TH1 TH3 TH4 BL WH WH OR BL BK BR YL REACTOR BL BL BL BL BR BL BR WH BR BR RD RD BL BL BL 4 3 4...

Page 21: ...Service Manual 21 Electronic control device MAIN P C B ASM Electronic control device ...

Page 22: ...on Group Control Optional Wiring Radio Frequency Control Optional Each controller can control 16 units and 8 controllers can connect It operates maximum 16 units by only one wired remote con troller and each unit starts random to prevent overcurrent Room temperature sensor Thermistor Maintains the room temperature in accordance with the Setting Temp Indoor fan is delayed for 5 seconds at the start...

Page 23: ...g model only Low Med High Cooling Operation Mode Heating Operation Mode Auto Operation Mode Soft Dry Operation Mode Fan Operation Mode Fan Auto Function HI AUTO MED LO Program Holiday SET CLR Min Hour Week Timer Cancel Timer Cancel AUTO High 39 C LOW 11 C Fan Operates without cooling heating Used to control the indoor air flow when the comp is off Cooling Heating Down to 18 C Up to 30 C Down to 16...

Page 24: ...it takes 3 5 seconds to switch 2 Soft Dry Operation The indoor fan speed is automatically set to the low so the shift of the indoor fan speed is impossible because of already being set to the best speed for Dry Operation by Micom Control 3 Cooling Mode Operation When selecting the Cooling Mode Operation the unit will operate according to the setting by the remote con troller and the operation diag...

Page 25: ...es at seleted fan speed when it becomes lower than 39 C the fan operates at low speed 4 Heating Mode Operation Except Cooling Model The unit will operate according to the setting by the remote controller and the operation diagram is shown as following Hot Start Low Selecting Fan Speed minimum 3min Selecting fan speed minimum 10sec 1min A A minimum 10sec B 5 Hot Start Control The indoor fan stops u...

Page 26: ...ill flash in the remote controller display when a problem occurs Then please contact your dealer Correct the accident point as shown in the table below before restarting operation During the normal operation CHECK won t be displayed in the remote controller Remote controller LCD Accident Point CH 01 Indoor room temperature thermistor error CH 02 Indoor piping thermistor error CH 03 Indoor main bod...

Page 27: ...an electri cal noise The place where air circulation in the room will be good There should not be any heat source or steam near the unit 2 Outdoor unit If an awning is built over the unit to prevent direct sun light or rain exposure be careful that heat radiation from the condenser is not restricted There should not be any animals or plants which could be affected by hot air discharged Ensure the ...

Page 28: ... Elevation B m Length A m Additional refrigerant g m Pipe Size Diameter Ø Standard 7 5 7 5 7 5 7 5 Standard 5 5 5 5 Max 50 50 50 50 Max 30 30 30 30 36k Btu h 42k Btu h 48k Btu h 60k Btu h If 36k Model is installed at a distance of 50m 2 125g of refrigerant should be added 50 7 5 x 50g 2 125g Capacity is based on standard length and maximun allowance length is on the basis of reliability Improper r...

Page 29: ...rew Nut screw Nut Self tapping screw or M6 Zinc plated screw Nut TYPE A Using steel chain TYPE B Using Galvanized steel strap Throughly study the following installation locations 1 In such places as restaurants and kitchens considerable amount of oil steam and flour adhere to the fan the fin of the heat exchanger resulting in heat exchange reduction spraying dispersing of water drops etc In these ...

Page 30: ...w Always lay the drain with downward inclina tion 1 50 to 1 100 Prevent any upward flow or reverse flow in any part 5mm or thicker formed thermal insulator shall always be provided for the drain pipe Install the P Trap or U Trap to prevent a water leakage caused by the blocking of intake air filter Applied U Trap Dimension 1 Install declination of the indoor unit is very important for the drain of...

Page 31: ... Is the drainage smoothly and no sweating Gas leakage Is the piping connection correctly Wiring Is the wiring connection correctly Lock bolt Is the lock bolt of compressor loosened THERMAL INSULATION TEST AND CHECK Make sure that there is no clearance here Overlap with thermal insulator for piping Thermal insulator for refrigerant pipe Local supply Thermal insulator for piping Local supply Hose cr...

Page 32: ... numbers are matched on unit side and remote controller side Main board CN REMO The maximum length of the cord is 100m If the length of the cord exceeds 50m use a wire size greater than 0 5mm2 Remote controller CN REMO Remote control box body Lever carefully the box open using a screw driver etc Front case The lower part Face of wall Upper notch Upper flange Under plate Remote control cord Remote ...

Page 33: ...n Fig 1 The standard height is 1 2 1 5 m from floor level Operation unit ZONE 1 2 3 4 Humidify JET AUTO AUTO SWING OPERATION FAN SPEED Program set SUB FUNCTION SET TEMP Room Temp HI MED LO Heater Defrost Filter Preheat Out door Time Timer On Set no Time Off 01 03 05 07 09 11 13 15 17 19 21 23 Opera tion unit ZON E 1 2 3 4 Humi dify JET AUTO AUTO SWIN G OPE RATI ON FAN SPE ED Progr am set SUB FUNC ...

Page 34: ...that can support the weight of unit and withstand its vibrations Keep a maintenance space REFRIGERANT PIPING INSTALLATION OF OUT DOOR UNIT Perform the work according to the Service Manual or Installation Guide Select a location that satisfies the following conditions Install the unit firmly in place Use two spanners when connecting the refrigerant pipe to the unit Make a bend with a radius as larg...

Page 35: ...ll wiring must comply with local requirements Select a power source that is capable of supplying the current required by the air conditioner Use a recognized circuit breaker between the power source and the unit A disconnection device to adequately disconnect all supply lines must be fitted Capacity of circuit breaker recommended by authorized personnel only WIRING CONNECTION Outdoor unit Remove t...

Page 36: ... Putting nut on Remove flare nuts attached to indoor and outdoor units than put them on pipe tube having completed burr removal Not possible to put them on after flaring work Flaring work Carry out flaring work using flaring tool as shown below Firmly hold copper tube in a bar or die as indicated dimension in the table above Check Compare the flared work with figure If flare is noted to be defecti...

Page 37: ...es generally using ready made sockets While brazing protect piping against heat with wet cloth to avoid damaging valve packing or burning thermal insulator with burner heat While brazing blow inert gas nitrogen gas or carbonic gas to prevent formation of oxidation film in copper piping otherwise the refrig erant circuit will clog The blowing of nitrogen gas or carbonic gas through 3 way valves is ...

Page 38: ... the arrow on the wrench Align the center of the piping and sufficiently tighten the flare nut by hand The provided elbow is possible for use in right and left Torque wrench Outdoor unit Gas side piping Bigger Dia Liquid side piping Smaller Dia Outdoor unit Elbow Pipe size Torque 1 4 1 8kg m 3 8 4 2kg m 1 2 5 5kg m 5 8 6 6kg m 3 4 6 6kg m 1 Checking the Drainage Check the drainage Spray one or two...

Page 39: ...to the middle of live pin on the power plug should be over 1 8m The power cord connected to the outdoor unit should be complied with the following specifications Rubber insulation type H05RN F approved by HAR or SAA If the supply cord is damaged it must be replaced by a special cord or assembly availible from the manufacturer of its service agent The connecting cable connected to the indoor and ou...

Page 40: ...bjected during the course of transportation Check them and make sure that they are all tightly fastened If they are loose it could give rise to burn out of the wires 4 Specification of power source 5 Confirm that electrical capacity is sufficient 6 Be sure that the starting voltage is maintained at more than 90 percent of the rated voltage marked on the name plate 7 Confirm that the cable thicknes...

Page 41: ...rm the following 1 Tape the piping and connecting cable from down to up 2 Secure the taped piping along the exterior wall Form a trap to prevent water entering the room 3 Fix the piping onto the wall by saddle or equiva lent 1 Open the control cover of outdoor unit 2 Select one of the two selectable modes as follows 3 Move the Slide swithc to LONG position 4 Close the top cover and check whether t...

Page 42: ...connect the gauge manifold and the vacuum pump to the service port by the charge hose 4 Vacuum the indoor unit and the connecting pipes until the pressure in them lowers to below 76cmHg 5 Remove the valve stem nuts and fully open the stems of the 2 way and 3 way valves with a hexagon wrench 6 Tighten the valve stem nuts of the 2 way valve and 3 way valve 7 Disconnect the charge hose and fit the nu...

Page 43: ...able Local Supply Connector Connector YL SIGNAL BR GND YL SIGNAL BR GND YL SIGNAL BR GND Remote Controller PCB Single Group Slide Switch2 Using the supplied Wired Remote Controller wire them like above Move slide switch 2 to Group position Ensure that the color of wire Open the rear cover of Remote Controller to set up the mode Selectable options are three as follows Remo Sensing the room Temperat...

Page 44: ...V TPS Error Code Indoor Status Outdoor Error Error Code Description INV TPS LED 1 Red LED 2 Green Indoor Sta tus 21 DC Peak IPM Fault 2times 1time OFF 22 CT 2 Max CT 2times 2times OFF 23 DC Link Low Volt 2times 3times OFF 24 L_P Heater Sink 2times 4times OFF 25 Low voltage Over voltage 2times 5times OFF 26 DC Comp Position Error 2times 6times OFF 27 PSC Fault Error 2times 7times OFF 28 DC Link Hig...

Page 45: ...ycle Notice 1 The suction pressure is usually 4 5 6 0 kg cm2 G at normal condition 2 The temperature can be measured by attaching the thermometer to the low pressure tubing and wrap it with putty Temp difference approx 0 C Current less than 80 of rated current Temp difference approx 8 C Current less than 80 of rated current Temp difference less than 8 C Current near the rated current Temp differen...

Page 46: ...ower The voltage applied to the unit The connecting method of Indoor Outdoor connecting cable each color The P W B Ass y Fuse Noise Filter Power Transformer IC01D IC02D etc Trouble 1 NO YES The operation check of the P C B Ass y Procedure 1 The input voltage of power trans former 2 The output voltage of power transformer 3 IC01D 7812 4 IC02D 7805 5 IC01A KIA7036 Specification 1 AC230V 30V Check th...

Page 47: ...utdoor fan is stopped Check the related circuit of R02H 12 1K R01H 1K R04H 6 2K R03H 1K C01H 102 C02H 102 Micom pin No Check the Indoor temperature sensor is disconnected or not about 10K at 25 C Check the Relay RY PWR RY START for driving Compressor Check the voltage between brown and blue cable of terminal to connect the Outdoor About AC220V 240V Check the related circuit of relay in Outdoor PCB...

Page 48: ...CN FAN Check the Fan Motor Check the Fuse AC250V T2A Turn on the main power Check the related circuit of indoor Fan Motor The pin No 38 of micom and the part for driving SSR Q01M Check the related pattern Check the SSR SSR Open Indoor Fan Motor never operate SSR short Indoor Fan Motor always operates in case of ON or OFF The voltage of Pin No 1 orange and 3 black of CN FAN About AC 160V over About...

Page 49: ...s 140V Low High press switch OPEN Abnormal AC volt Input Off Off Off IPM Fault Compressor Over current CT 2 Max Current DC Link Low Volt Low High press AC Low AC High Volt DC Compressor Position PSC Fault DC Link High Volt Discharge Pipe Temp High INV Discharge Pipe Temp High Cons 21 22 23 24 25 26 27 28 32 33 Off Off Off Off Off Off Off Off Off Off Outdoor Status 2 times 2 times 2 times 2 times 2...

Page 50: ... CT Circuit D pipe sensor INV open short Air sensor open short Cond Pipe sensor open short Suction pipe sensor open short D pipe sensor Cons open short Communication Indoor Outdoor EEPROM check sum Cond Pipe sensor temp high Heat sink sensor temp high Heat sink sensor open short 40 41 44 45 46 47 53 60 61 62 65 Off Off Off Off Off Off Off Off Off Off Off Outdoor Status 4 times 4 times 4 times 4 ti...

Page 51: ...al voltage 2 5Vdc at 25 C plugged Normal resistor 5KΩ at 25 C Unplugged Normal voltage 2 5Vdc at 25 C plugged Display code Title Cause of error Check point Normal condition Check Point 1 Unplug the sensor on Indoor unit PCB 2 Estimate the resistance of each sensor 3 If the resistance of the sensor is 10KΩ 5KΩ at 25 C then sensor is normal 4 If the resistance of the sensor is 0 KΩ or then sensor is...

Page 52: ...f wire Main PCB Volt DC12V Noise interference Display code Title Cause of error Check point Normal condition Check Point 1 Check the wire connection Open Short Repair the connection 2 Check the soldering state of connector Soldered poorly Repair or Change the PCB 3 Check the volt Of main PCB power source DC 12V DC 5V Repair or Change the main PCB 4 Check the installation of wired remote controller...

Page 53: ... power input 220V Drain tube installation Indoor unit installation Inclination Display code Title Cause of error Check point Normal condition Check Point 1 Check the wire connection Open Soldered poorly Repair the connection or change the PCB 2 Check the resistance of float switch Abnormal Open Normal short Check the float switch 3 Check the level of water 4 Check the volt Of Drain pump power supp...

Page 54: ...of outdoor PCB is abnormal Transmission circuit of indoor PCB is abnormal Display code Title Cause of error Check point Normal condition Check Point 1 Check the input power AC230V Outdoor Indoor unit 2 Check the communication wires are correctly connected Adjust the connection of wire Confirm the wire of Live Neutral 3 Check the resistance between communication line and GND Normal Over 2MΩ 4 Check...

Page 55: ...t in the U V W phase Comp lock The abnormal connection of U V W Over load condition Overcharging of refrigerant Pipe length Poor insulation of compressor Display code Title Cause of error Check point Normal condition Check Point 1 Check the wire connection U V W 2 Check the load condition Refrigerant Pipe length Adjust the load condition 3 Check the electricity leakage of the compressor Normal Ove...

Page 56: ...or Blocking of pipe Low voltage input Refrigerant pipe length blocked Malfunction of current detection circuit Open Short The voltage of C01N Is 4 0Vdc 25A Display code Title Cause of error Check point Normal condition Check Point 1 Check the power source 2 Check the fan operation is right 3 Check the current 4 Check the install condition 5 Check the internal circuit C T Diode Resistor ...

Page 57: ...DC Link High voltage DC link volt is 140Vdc DC link volt is 420Vdc Check the power source Check the components Check the power source Check the components Display code Title Cause of error Check point Normal condition Check Point 1 Check the power source 2 Check the components B Diode Reactor PSC Parts ...

Page 58: ...0Vac 300Vac Check the connection of CN_Press Check the components Check the power source Check the components Display code Title Cause of error Check point Normal condition Check Point CH 24 1 Check the connection of CN_PRESS 2 Check the install condition for over load 3 Check the SVC V V open 4 Check the leakage of refrigerant CH 25 1 Check the power source 2 Check the components Trans1 B Diode D...

Page 59: ...on of comp wire U V W Malfunction of compressor Check the component of IPM detection parts Check the component of IGBT Check the components Display code Title Cause of error Check point Normal condition Check Point CH 26 1 Check the connection of U V W 2 Check the insulation of IPM part 3 Check the compressor same with CH21 CH 27 1 Check the component of IGBT 2 Check the components IGBT R04S NF1 B...

Page 60: ...for INV Check the install condition for over load Check the leakage of refrigerant Check the SVC V V open Check the discharge pipe sensor for Cons Check the install condition for over load Check the leakage of refrigerant Check the SVC V V open Display code Title Cause of error Check point Normal condition Check Point CH 32 1 Check the install condition for over load 2 Check the SVC V V open 3 Che...

Page 61: ...gged Normal resistor 5KΩ at 25 C Unplugged Normal voltage 2 5Vdc at 25 C plugged Normal resistor 5KΩ at 25 C Unplugged Normal voltage 2 5Vdc at 25 C plugged Normal resistor 200KΩ at 25 C Unplugged Normal voltage 4 5Vdc at 25 C plugged Normal resistor 10KΩ at 25 C Unplugged Normal voltage 2 5Vdc at 25 C plugged Display code Title Cause of error Check point Normal condition Check Point 1 Estimate th...

Page 62: ...gh temp 85 C Check the load condition Check the sensor of Condenser pipe sensor Check the fan is locked Check the sensor of heat sink Display code Title Cause of error Check point Normal condition Check Point CH 61 1 Check the install condition for over load Refrigerant Pipe length Blocked CH 62 1 Check the fan is locked 2 Check the Outdoor temp is very high COMP Frequency Hz Toff C T1 C T2 C OFF ...

Page 63: ... Replacement Parts List Model ABNW366KSA1 ABNW366KSA3 237203 330870 W3001 137211 1 137211 2 237204 3 268711 249941 2 249941 1 237204 1 237201 237200 267110 359012 W6640 237204 2 346810 Exploded View and Replacement Parts List Indoor Unit ...

Page 64: ...P XP0023 062 330870 PAN ASSEMBLY 3087A20015A R DRAIN TRAY ASSEMBLY XP0023 064 237204 2 PANEL SIDE 3720A20211G R PANEL CORNER FLH XP0023 100 237204 3 PANEL SIDE 3720A20211H R PANEL CORNER FRH XP0023 102 249941 1 CASE CONTROL INDOOR 4994A20068C R CONTROL BOX XP0023 149 249941 2 CASE CONTROL INDOOR 4994A20068D R CONTROL BOX COVER XP0023 150 237200 PANEL CONTROL 3720A20209B R PANEL ACCESS CNTRL XP0023...

Page 65: ...eplacement Parts List Model ABNW426KSA1 ABNW426KSA3 ABNW486KSA1 ABNW606LTA1 237203 330870 W3001 1 137211 237204 4 268711 249941 1 237201 237204 1 237204 2 W3001 2 237200 267110 354212 237204 3 W3300 249941 2 359012 W6640 567480 2 567480 1 ...

Page 66: ...ASSEMBLY 3087A20015A 3087A20017A 3087A20017A R DRAIN TRAY ASSEMBLY XP0023 064 XP0023 087 XP0023 087 237204 3 PANEL SIDE 3720A20211C 3720A20216C 3720A20216C R PANEL CONTROL FLH XP0023 100 XP0023 096 XP0023 096 237204 4 PANEL SIDE 3720A20211D 3720A20216D 3720A20216D R PANEL CONTROL FRH XP0023 102 XP0023 090 XP0023 090 249941 1 CASE CONTROL INDOOR 4994A20068A 4994A20068A 4994A20068A R CONTROL BOX XP0...

Page 67: ...60 2 554160 1 554031 554031 447910 430410 435512 435301 437211 137213 2 137213 1 435300 548490 552115 552111 552116 352113 435511 649950 268711 W0CZZ 1 W0CZZ 2 566000 561410 552203 1 552203 2 552204 558511 552200 261704 263230 1 567480 2 567480 1 Model ABUW366KSA1 ABUW366KSA3 Outdoor Unit ...

Page 68: ...A R 447910 BARRIER ASSEMBLY OUTDOOR 4791A10019A R 261704 TRANSFORMER REACTOR 5874A90006A R 561410 SOLENOID 6141AR3733V R 649950 CASE ASSEMBLY CONTROL OUTDOOR 4995A10101P R 268711 PCB ASSEMBLY MAIN 6871A10117N R W0CZZ 1 CAPACITOR FILM BOX COMP 2A00986X R W0CZZ 2 CAPACITOR FILM BOX FAN 3H00660P R 567480 1 THERMISTOR NTC ROOM COND OUT 6323A20020H R 567480 2 THERMISTOR NTC DISCHARGE SUCTION 6323A20020...

Page 69: ...86KSA1 437212 554031 1 435512 658740 W0CZZ 1 W0CZZ 2 W6920 268711 1 447910 566000 552116 430411 546810 1 546810 2 435301 35211A 552113 558511 263230 567480 2 567480 1 554031 2 559010 268711 649950 437210 435511 137213 554160 1 352114 552204 554160 2 552203 2 552203 1 352112 552111 561410 661400 ...

Page 70: ...661400 COIL 6141A30003M 6141A30003M R 447910 BARRIER ASSEMBLY OUTDOOR 4791A20012E 4791A20012E R 559010 FAN ASSEMBLY PROPELLER 5901A10032A 5901A10032A R 437212 PANEL ASSEMBLY REAR OUTDOOR 3720AP1202C 3720AP1202C R 437210 PANEL ASSEMBLY FRONT SUB 3720AP1212B 3720AP1212B R 435301 GRILLE DISCHARGE 3530AP1225D 3530AP1225D R 435512 COVER ASSEMBLY TOP OUTDOOR 3550AP1213B 3550AP1213B R 137213 PANEL ASSEMB...

Page 71: ...112 4 552112 1 55211E 55211G 668713 137213 352112 1 552113 2 552113 1 552112 2 558511 137213 561411 649950 352114 346811 668711 554030 3 549610 559010 349490 435312 437211 554030 2 546810 554030 4 437212 548490 2 561410 2 552116 554160 1 554160 2 430410 554160 2 552203 1 552203 2 552112 3 263230 3 263230 2 263230 1 263230 4 ...

Page 72: ...SSEMBLY MECH 4849A10041A 549610 MOUNT ASSEMBLY MOTOR OUTDOOR 4961A20028A 552112 1 TUBE ASSEMBLY CONDENSER IN 5211A10480G 552112 2 TUBE ASSEMBLY CONDENSER IN 5211A10480B 552112 3 TUBE ASSEMBLY CONDENSER IN 5211A10480F 552112 4 TUBE ASSEMBLY CONDENSER IN 5211A10480E 552113 1 TUBE ASSEMBLY CONDENSER OUT 5211A10481A 552113 2 TUBE ASSEMBLY CONDENSER OUT 5211A10481B 552116 TUBE ASSEMBLY REVERSING 5211A2...

Page 73: ...P No 3828A20464D January 2007 Printed in Korea ...

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