Model reference
LG RMBH100GAM0SER
Air Conditioner
5 documents160 error codes4 service modes
Available documentation
Service Manual
- LG Samsung RMBH100GAM0SER Disassembly & Reassembly78 pg
- Alignment & Adjustment - PCB Option Code Input Method8 pg
Wiring Diagram
- LG Samsung RMBH100GAM0SER Wiring Diagram20 pg
- LG Samsung RMBH100GAM0SER Schematic Diagram14 pg
Other
- LG Samsung RMBH100GAM0SER Operation Instruction _ Installation25 pg
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Error codes (160)
CodeMeaning
AxBreakaway of indoor unit EVAP IN sensor (x = indoor unit address).BxOPEN/SHORT error of EVAP OUT sensor in indoor unit (x = indoor unit address).ChCompressor preheating in progress via crank case heater (CCH)CxOPEN/SHORT error of room sensor in indoor unit (x = indoor unit address).DxOPEN/SHORT error of EVAP IN sensor in indoor unit (x = indoor unit address).E1System down due to communication error after completion of tracking…E101Communication error between the indoor unit and the wired 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 error.E154Indoor fan error.E155Mixed operation error (operate heat and cool mode at same time).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.E170The 1st MCU SOL V/V cooling/heating opening at the same time.View all 160 error codes
E171The 2nd MCU SOL V/V cooling/heating opening at the same time.E172The 2nd MCU SOL V/V error.E2Tracking errorE201Installed 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…E231Outdoor temperature sensor open/short error.E232Outdoor temperature sensor breakaway.E233COND-OUT MAIN temperature sensor error (OPEN/SHORT).E234COND-OUT SUB 1 temperature sensor error (OPEN/SHORT).E235COND-MID sensor breakaway of outdoor unit.E236COND-OUT 1 sensor breakaway.E241PWM discharge temperature 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 (|Tdisc,dE263Fixed 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 (float switch open for longer than 1 minute).E4Setting error of option switch in indoor unit (wired remote controller address…E401Outdoor unit freezing detection 1.E402Outdoor unit freezing detection 2.E403Outdoor unit freezing detection 3E411Outdoor unit overload 1 protection control error.E412Outdoor unit overload 2 protection control error.E413Outdoor unit overload 3 protection control error.E421Compressor down by high pressure sensor protection control 1.E422Compressor down by high pressure sensor protection control 2.E423Compressor down by high pressure sensor protection control 3.E424Reverse phase detection of 3-phase power (reverse or missing phase).E425Outdoor unit reverse phase detection 1 error.E426Outdoor unit reverse phase detection 2 error.E427Outdoor unit reverse phase detection 3 error.E431Compressor down by low pressure sensor protection control 1.E432Compressor down by low pressure sensor protection control 2.E433Compressor down by low pressure sensor protection control 3.E441Outdoor unit SUMP DOWN 1 protection control (SUMP temperature maintains over…E442Outdoor unit SUMP DOWN 2 protection control.E443Outdoor unit SUMP DOWN 3 protection control.E451Outdoor unit discharge temperature 1 protection control.E452Outdoor unit discharge temperature 2 protection control.E453Outdoor unit discharge temperature 3 protection control.E461Outdoor unit EEV open 1 self diagnosis error.E462Outdoor unit EEV open 2 self diagnosis error.E463Outdoor unit EEV open 3 self diagnosis error.E464Outdoor unit EEV close 1 self diagnosis error.E465Outdoor unit EEV close 2 self diagnosis error.E466Outdoor unit EEV close 3 self diagnosis error.E471Outdoor unit compression rate 1 error (compression ratio over 8.5 for more than…E472Outdoor unit compression rate 2 error.E473Outdoor unit compression rate 3 error.E481Forbid heating mode operation when outdoor temperature over 30°C.E482Forbid cooling mode operation when outdoor temperature below -5°C.E483Refrigerant charging operation restriction at over 15°C outdoor temperature in…E484Instant power offE5Indoor unit EEPROM error.E501Defrosting operation (not an error).E502Low discharge pressureE503Equability (oil leveling) operationE504Loading failure of digital compressor.E505Full leakage of refrigerant of outdoor unit.E506Low pressure detection error at initial compressor start (low pressure below…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.FxBreakaway of indoor unit EVAP OUT sensor (x = indoor unit address).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 during first…G5Breakaway of suction temperature sensor (detected during first 30 minutes from…G6Breakaway of fixed compressor discharge sensor (detected once or more times).G7Self-diagnosis of condensation sensor.G8Self-diagnosis of condensation sensor.G9Self-diagnosis of condensation sensor.P0System down due to high temperature of discharge sensor (discharge temperature…P1System down due to high temperature of condenser sensor (condensate temperature…P2SUMP COMP DOWNP3System down due to low pressure switch detection (low pressure lower than 1.2…P4Reverse phase or open phase error on 3-phase power supply to outdoor unit.P5System down due to frozen heat exchanger (indoor unit heat exchanger…P6Error of momentary power failureP7Compressor down due to protection control of high pressure sensor (over 28…P701Float switch detection error (low level riskP702Indoor 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 (less than 3…P9In removing frostPACompressor down due to protection control of condensation ratio (compression…qxElectronic expansion valve open error for xth indoor unit.rxElectronic expansion valve close error for xth indoor unit.sxSimultaneous breakaway of indoor unit EVAP IN and EVAP OUT sensor (x = indoor…t1Error of outdoor temperature sensor (OPEN/SHORT)t2Error of condenser temperature sensor (OPEN/SHORT)t3Error of PWM discharge temperature sensor (OPEN/SHORT)t4Error of liquid refrigerant pipe (COND OUT) temperature sensor (OPEN/SHORT)t5Error of oil temperature sensor (OPEN/SHORT)t6Error of suction temperature 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)toOver 30°C when heatingtuBelow -5°C when coolingvxIndoor unit fan motor starting error (x = indoor unit address).
Service modes (4)
- Error resetPress KEY 3 (K3) reset key on outdoor unit PCB.
- Pipe check modePerform pipe check operation; press KEY 5 (K5) after pipe check to display error information.
- S-NET diagnostic monitoringConnect S-NET monitoring tool to the system
- 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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