Model reference

Samsung RMAH180GAM0SER

Air Conditioner

3 documents115 error codes3 service modes

Available documentation

Service Manual

LG Samsung RMAH180GAM0SER Disassembly & Reassembly78 pg
Covers this model

Wiring Diagram

LG Samsung RMAH180GAM0SER Wiring Diagram20 pg
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Other

LG Samsung RMAH180GAM0SER Operation Instruction _ Installation25 pg
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Indoor unit EVAP IN sensor breakaway

From Service Manual 704280, p.12:

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 DC34-00024B

Door lock assembly

Error codes (115)

CodeMeaning

AxIndoor unit EVAP IN sensor breakaway for unit x.BxOPEN/SHORT error of EVAP OUT sensor in indoor unit x.ChCompressor preheating in progress via crank case heater (CCH); not an error…CxOPEN/SHORT error of room sensor in indoor unit x.DxOPEN/SHORT error of EVAP IN sensor in indoor unit x.E1System down due to communication error after completion of tracking (no…E101Communication error between the indoor unit and the panel.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.E121Indoor unit EEV open failure.E122Indoor unit EEV close failure.E153Indoor unit float switch detection error.E154Indoor fan error.E155Mixed operation error (operating heat and cool mode at same time).E156EEPROM error.E157Option setting error.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.E261Digital discharge sensor breakaway.E262Fixed 1 discharge sensor breakaway.

View all 115 error codes

E263Fixed 2 discharge sensor breakaway.E264Fixed 3 discharge sensor breakaway.E265Sump-main breakaway error.E266Sump Sub 1 breakaway error.E267Sump Sub 2 breakaway error.E268Sump Sub 3 breakaway error.E269Suction breakaway error.E3Indoor unit float switch error (float switch open for longer than 1 minute).E301OUT-TEMP sensor OPEN/SHORT error.E302OUT-TEMP temperature sensor breakaway.E303COND-OUT MAIN TEMP sensor error OPEN/SHORT.E304COND-OUT SUB 1 TEMP sensor error OPEN/SHORT.E305COND-MID sensor breakaway of outdoor unit.E306COND-OUT 1 breakaway.E307PWM DISCHARGE TEMP sensor error OPEN/SHORT. Detected when outdoor temperature…E308Fixed capacity compressor 1 discharge sensor error OPEN/SHORT E309Fixed capacity compressor 2 discharge sensor error OPEN/SHORT. Detected when…E310Fixed capacity compressor 3 discharge sensor error OPEN/SHORT. Detected when…E311SUMP TEMP DIGITAL sensor error OPEN/SHORT. Detected when outdoor temperature is…E312SUMP TEMP FIXED 1 sensor error OPEN/SHORT. Detected when outdoor temperature is…E313SUMP TEMP FIXED 2 sensor error OPEN/SHORT. Detected when outdoor temperature is…E314SUMP TEMP FIXED 3 sensor error OPEN/SHORT. Detected when outdoor temperature is…E315High pressure sensor error OPEN/SHORT E316Low pressure sensor error OPEN/SHORT E320Main cooling solenoid valve open error.E3214-Way valve operation error.E4Mismatching of set indoor unit numbers with communicated indoor unit numbers…E425Outdoor unit reverse phase detection error for 3-phase power.E5Setting error of option switch in indoor unit (wired remote controller address…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.FxElectronic expansion valve open error for indoor unit x.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 sensor (detected during first 30 minutes of compressor…G6Breakaway of fixed compressor discharge sensor (detected once or more times).G7High pressure sensor breakaway.G8Low pressure sensor breakaway.G9Suction temperature sensor error (OPEN/SHORT).P0System down due to high temperature of discharge sensor (discharge temperature…P1System down due to high temperature of COND sensor (condensate temperature of…P2SUMP COMP DOWN P3System 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 failure P7Compressor down due to protection control of high pressure sensor (high…P701Outdoor unit freezing detection 1.P702Outdoor unit freezing detection 2.P703Outdoor unit freezing detection 3 P704Outdoor unit overload 1 protection control error.P705Outdoor unit overload 2 protection control error.P706Outdoor unit overload 3 protection control error.P707Compressor down by high pressure sensor protection control 1.P708Compressor down by high pressure sensor protection control 2.P709Compressor down by high pressure sensor protection control 3.P710Compressor down by low pressure sensor protection control 1.P711Compressor down by low pressure sensor protection control 2.P712Compressor down by low pressure sensor protection control 3.P713Outdoor unit SUMP DOWN 1 protection control (SUMP temperature maintains over…P714Outdoor unit SUMP DOWN 2 protection control.P715Outdoor unit SUMP DOWN 3 protection control.P716Outdoor unit discharge temperature 1 protection control.P717Outdoor unit discharge temperature 2 protection control.P718Outdoor unit discharge temperature 3 protection control.P8Compressor down due to protection control of low pressure sensor (low pressure…P9In removing frost PACompressor down due to protection control of condensation ratio (compression…qxElectronic expansion valve close error for indoor unit x.rxIndoor unit EVAP OUT sensor breakaway for unit x.sxSimultaneous breakaway of indoor unit EVAP IN and EVAP OUT sensor for unit x.t1Error of outdoor temperature sensor (OPEN/SHORT). Error level t2Error of COND TEMP sensor (OPEN/SHORT). Error level t3Error of PWM Discharge TEMP sensor (OPEN/SHORT). Detected when outdoor…t4Error of liquid refrigerant pipe (COND OUT) TEMP sensor (OPEN/SHORT). Error…t5Error of OIL TEMP sensor (OPEN/SHORT). Detected when outdoor temperature is…t6Error of SUCTION TEMP sensor (OPEN/SHORT). Error level t7Error of high pressure sensor (OPEN/SHORT)t8Error of low pressure sensor (OPEN/SHORT)t9Error of fixed compressor discharge sensor (OPEN/SHORT). Detected when outdoor…toRestriction of heating operation when outdoor temperature is over 30°C, or…tuRestriction of cooling operation when outdoor temperature is below -5°C.vxError of fan starting for indoor unit x.

Service modes (3)

Error resetPress KEY 3 (K3) reset key on outdoor unit PCB.
Piping checkPerform piping check procedure, then press KEY 5 (K5) on outdoor unit PCB to display error…
Test operationPress KEY 4 (K4) on outdoor unit PCB to enter test operation mode.

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

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