Model reference
LG GR-P277S*W
Refrigerator
1 document9 error codes5 service modes
Available documentation
Service Manual
- Refrigerator Service Manual102 pg
MyPros+ Max
Diagnose your LG GR-P277S*W.
- Step-by-step diagnostics from the service manual
- Test values, resistance specs, and wiring references
- Verified part numbers when replacement is needed
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Error codes (9)
CodeMeaning
1Freezer sensor failure (open or short circuit)2Refrigerator sensor 1 failure (open or short circuit)5Defrost sensor failure (open or short circuit)6Communication error between main PCB and display PCBCR2-sensor (middle room) failuredWater-tank sensor failureEOpti-fresh sensor failureErAmbient temperature sensor failureFBLDC freezer fan motor lock or failureService modes (5)
- Demo Mode (Exhibition Mode)Press and hold the REFRIGERATOR and EXPRESS FRZ buttons simultaneously for 5 seconds until 'Ding~'…
- Icemaker Test ModePress and hold the Fill Key on the icemaker for more than 3 seconds.
- LCD/LED Check FunctionSimultaneously press the EXPRESS FREEZER button and freezing temperature adjustment button for more…
- Test Mode 1 (Strong Cold / Manual Function)Press the test button on the main PCB once.
- Test Mode 2 (Forced Defrost)Press the test button on the main PCB once while in Test Mode 1.
Full entry steps, exit procedures, and test sequences are available in Max.
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