Model reference
LG LRFC21760ST
Refrigerator
4 documents6 error codes9 service modes
Available documentation
Service Manual
- LRFC21755xx Owners Manual34 pg
- LG Refrigerator Service and Warranty Document34 pg
- Refrigerator Service Manual44 pg
Bulletin
- Service Bulletin - Installation Instructions - Assembly Method for Tilting Doors11 pg
MyPros+ Max
Diagnose your LG LRFC21760ST.
- Step-by-step diagnostics from the service manual
- Test values, resistance specs, and wiring references
- Verified part numbers when replacement is needed
Start diagnosing
$29/month · Cancel anytime · Or $9.95 3-day pass
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 (9)
- 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 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…
Full entry steps, exit procedures, and test sequences are available in Max.
Related LG refrigerator models
78,000+ service manuals · 160,000+ error codes · 55+ brands
Get Started$29/month · Cancel anytime · Or $9.95 3-day pass