Model reference

LG RVMH100FAM0G

Air Conditioner

4 documents160 error codes3 service modes

Available documentation

Service Manual

LG Samsung RVMH100FAM0G Service Manual Disassembly & Reassembly78 pg
Covers this model
Set up the model options8 pg
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LG Samsung RVMH100FAM0G Service Manual Schematic Diagram14 pg
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Wiring Diagram

LG Samsung RVMH100FAM0G Service manual Wiring Diagram20 pg
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MyPros+ Max

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Test values, resistance specs, and wiring references
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Ax on my LG RVMH100FAM0G

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Electronic expansion valve close error

From Service Manual 518014, p.26:

1.Access service mode to confirm the active fault code and read stored error history.

2.Measure door lock assembly resistance across PTC terminals. Expected: ~200 ohms cold.

3.Inspect strike and latch alignment. A misaligned strike prevents the switch stack from closing.

Part 6601ER1004C

Door lock assembly

Error codes (160)

CodeMeaning

AxElectronic expansion valve close error (x = indoor unit address).BxElectronic expansion valve open error (x = indoor unit address)ChCompressor preheating in progress CxIndoor unit EVAP IN sensor breakaway (x = indoor unit address).DxIndoor unit EVAP OUT sensor breakaway (x = indoor unit address).E1System down due to communication error after completion of tracking E101Communication error between the indoor unit and the panel (PAC).E102Indoor unit room temperature sensor open/short error.E103Indoor unit EVAP IN sensor open/short error.E104Indoor unit EVAP OUT sensor open/short error.E105Indoor unit EVAP IN sensor breakaway.E106Indoor unit EVAP OUT sensor breakaway.E107Simultaneous breakaway of indoor unit EVAP IN/OUT sensor.E108Auxiliary (electric) heater sensor 1 error.E109Auxiliary (electric) heater sensor 2 error.E110Auxiliary (electric) heater sensor 3 error.E111Shutter sensor error.E112Perfect fan sensor error.E113MCU temperature sensor open/short error.E121Indoor unit EEV open failure.E122Indoor unit EEV close failure.E153Indoor unit float switch detection.E154Indoor fan error.E155Mixed operation error E156EEPROM error.E157Option setting error.E158Electric heater discharge temperature protect error.E159No fan error related to the electric heater.E160S/W setup error in peripheral control device using option.E161The 1st MCU SOL V/V cooling/heating opening at the same time.

View all 160 error codes

E162The 2nd MCU SOL V/V cooling/heating opening at the same time.E163The 2nd MCU SOL V/V error.E170No change of EVAP IN temperature during the piping check.E171No change of EVAP OUT temperature during the piping check.E172Change of EVAP IN temperature of other indoor unit during the piping check.E173Change of EVAP OUT temperature of other indoor unit during the piping check.E2Tracking error E201Installed indoor unit number setting error.E202Communication error between indoor and outdoor unit.E203Outdoor PCB MICOM communication error between main and sub.E204Communication error between the outdoor unit and MCU.E205Indoor unit connected with confluence kit without continuity.E206Indoor unit connected with confluence kit and setting address was overlapped…E207MCU address does not match with indoor unit address.E208Installed MCU quantity set-up error in the outdoor PCB or MCU address setting…E209Rotary switch for indoor unit address in MCU was overlapped among MCUs.E210DIP switch for indoor unit setting was ON position even though indoor unit was…E211DIP switch for indoor unit setting was OFF position even though indoor unit was…E221Outdoor temperature sensor OPEN/SHORT error.E222Outdoor temperature sensor breakaway.E231COND-OUT MAIN TEMP sensor error OPEN/SHORT.E232COND-OUT SUB 1 TEMP sensor error OPEN/SHORT.E233COND-MID sensor breakaway of outdoor unit.E234COND-OUT 1 breakaway.E241PWM DISCHARGE TEMP sensor error OPEN/SHORT E251Fixed capacity compressor 1 discharge sensor error OPEN/SHORT E252Fixed capacity compressor 2 discharge sensor error OPEN/SHORT E253Fixed capacity compressor 3 discharge sensor error OPEN/SHORT E261Digital discharge sensor breakaway.E262Fixed 1 discharge sensor breakaway E263Fixed 2 discharge sensor breakaway.E264Fixed 3 discharge sensor breakaway.E271Sump-main breakaway error.E272Sump Sub 1 breakaway error.E273Sump Sub 2 breakaway error.E274Sump Sub 3 breakaway error.E275Suction breakaway error.E281SUMP TEMP DIGITAL sensor error OPEN/SHORT E282SUMP TEMP FIXED 1 sensor error OPEN/SHORT E283SUMP TEMP FIXED 2 sensor error OPEN/SHORT E284SUMP TEMP FIXED 3 sensor error OPEN/SHORT E291High pressure sensor error OPEN/SHORT E292Low pressure sensor error OPEN/SHORT E293High pressure sensor breakaway.E294Low pressure sensor breakaway.E295Suction temperature sensor error OPEN/SHORT.E296Main cooling solenoid valve open error.E2974-Way valve operation error.E3Indoor unit float switch error E4Setting error of option switch in indoor unit E401Outdoor unit freezing detection 1.E402Outdoor unit freezing detection 2.E403Outdoor unit freezing detection 3 E404Outdoor unit overload 1 protection control error.E405Outdoor unit overload 2 protection control error.E406Outdoor unit overload 3 protection control error.E407Compressor down by high pressure sensor protection control 1.E408Compressor down by high pressure sensor protection control 2.E409Compressor down by high pressure sensor protection control 3.E410Compressor down by low pressure sensor protection control 1.E411Compressor down by low pressure sensor protection control 2.E412Compressor down by low pressure sensor protection control 3.E413Outdoor unit SUMP DOWN 1 protection control.E414Outdoor unit SUMP DOWN 2 protection control.E415Outdoor unit SUMP DOWN 3 protection control.E416Outdoor unit discharge temperature 1 protection control.E417Outdoor unit discharge temperature 2 protection control.E418Outdoor unit discharge temperature 3 protection control.E419Outdoor unit EEV open 1 self-diagnosis error.E420Outdoor unit EEV open 2 self-diagnosis error.E421Outdoor unit EEV open 3 self-diagnosis error.E422Outdoor unit EEV close 1 self-diagnosis error.E423Outdoor unit EEV close 2 self-diagnosis error.E424Outdoor unit EEV close 3 self-diagnosis error.E425Outdoor unit reverse phase detection 1 error.E426Outdoor unit reverse phase detection 2 error.E427Outdoor unit reverse phase detection 3 error.E428Outdoor unit compression rate 1 error.E429Outdoor unit compression rate 2 error.E430Outdoor unit compression rate 3 error.E440Forbid heating mode operation when outdoor temperature over 30°C.E441Forbid cooling mode operation when outdoor temperature below -5°C.E442Refrigerant charging operation at over 15°C outdoor temperature in heating mode.E443Instant power off E5Indoor unit fan motor starting error.E551Defrosting operation (not an error).E552Low discharge pressure E553Equability operation (oil leveling between compressors).E554Loading failure of digital compressor.E555Full leakage of refrigerant of outdoor unit.E601Communication error between wired remote controller and indoor unit.E602Communication error between master wired remote controller and slave wired…E603Communication error between 7-day scheduler and wired remote controller.FxSimultaneous breakaway of indoor unit EVAP IN and EVAP OUT sensor (x = indoor…G2Total leakage of refrigerant in outdoor unit or loading failure.G3Breakaway of COND MID sensor in outdoor unit.G4Breakaway of OIL temperature sensor (detected once or more times).G5Breakaway of SUCTION sensor.G6Breakaway of fixed compressor discharge sensor (detected once or more times).G7Below -5°C outdoor temperature when cooling G8Over 30°C outdoor temperature when heating G9Self-diagnosis of condensation sensor.P0System down due to high temperature of discharge sensor P1System down due to high temperature of COND sensor P2SUMP COMP DOWN P3System down due to low pressure switch detection P4Reverse phase or open phase error P5System down due to frozen heat exchanger P6Error of momentary power failure P7Compressor down due to protection control of high pressure sensor P701Float switch detection error (low level risk P702Indoor unit EEV closing error (low level risk).P703Indoor unit EEV opening error (low level risk).P704MCU solenoid valve failure (low level risk).P8Compressor down due to protection control of low pressure sensor P9In removing frost PACompressor down due to protection control of condensation ratio qxOPEN/SHORT error of room sensor in indoor unit (x = indoor unit address).rxOPEN/SHORT error of EVAP IN sensor in indoor unit (x = indoor unit address).sxOPEN/SHORT error of EVAP OUT sensor in indoor unit (x = indoor unit address).t1Error of outdoor temperature sensor (OPEN/SHORT)t2Error of COND TEMP sensor (OPEN/SHORT)t3Error of PWM Discharge TEMP sensor (OPEN/SHORT)t4Error of liquid refrigerant pipe (COND OUT) temperature sensor (OPEN/SHORT)t5Error of OIL TEMP sensor (OPEN/SHORT)t6Error of SUCTION TEMP sensor (OPEN/SHORT)t7Error of high pressure sensor (OPEN/SHORT)t8Error of low pressure sensor (OPEN/SHORT)t9Error of fixed compressor discharge sensor (OPEN/SHORT)vxError of fan starting in indoor unit (x = indoor unit address).

Service modes (3)

Error resetPress reset key KEY 3 (K3) on outdoor unit PCB.
Piping checkPress KEY 5 (K5) after pipe check to display error information.
Test operationPress KEY 4 (K4) on outdoor unit PCB to enter test operation mode (all indoor units operate).

Full entry steps, exit procedures, and test sequences are available in Max.

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