Model reference
LG LRFC21755ST
Refrigerator
4 documents6 error codes10 service modes
Available documentation
Service Manual
- Refrigerator Service Manual48 pg
- Refrigerator Service Manual44 pg
Bulletin
- Service Bulletin - Change of Adjusting Legs on 3 Door Bottom Freezer Refrigerators4 pg
- SERVICE BULLETIN No. CREF200704613 pg
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Error codes (6)
CodeMeaning
Er dHFailure of defrost modeEr dSFailure of defrost sensor due to cut or short circuit wire.Er FFFailure of BLDC fan motor at freezing compartmentEr FSFailure of freezer sensor due to cut or short circuit wire.Er rSFailure of refrigerator sensor due to cut or short circuit wire.Er rtFailure of room temperature sensor due to cut or short circuit wire (displayed…Service modes (10)
- Demonstration ModePress and hold any Refrigerator Temp control key or Freezer Temp control key for more than 5…
- Freezer Fan RPM Variable CheckWhile freezer fan is operating, press and hold the WARMER key of Refrigerator Temp and WARMER key…
- Icemaker Test ModePress and hold the water supply control key (Fill key) for 3 seconds.
- LED Check / Display CheckSimultaneously press the WARMER key of Refrigerator Temp and the WARMER key of Freezer Temp for…
- LED Check / Display Check ModePress and hold the WARMER key of Refrigerator Temp and the WARMER key of Freezer Temp…
- Reset (from TEST3)While in TEST3, press and hold Express Freezing key and COLDER key of Freezer Temp at the same time…
- Temperature Display Toggle (°F/°C)Press and hold the Refrigerator COLDER key and the Freezer COLDER key at the same time for more…
- TEST1Press and hold Express Freezing key and COLDER key of Freezer Temp at the same time for more than 3…
- TEST2While in TEST1, press and hold Express Freezing key and COLDER key of Freezer Temp at the same time…
- TEST3While in TEST2, press and hold Express Freezing key and COLDER key of Freezer Temp at the same time…
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