Model reference
LG LFX28992ST/00
Refrigerator
1 document15 error codes12 service modes
Available documentation
Service Manual
- Refrigerator Service Manual83 pg
MyPros+ Max
Diagnose your LG LFX28992ST/00.
- 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 (15)
CodeMeaning
Er CFAbnormality of BLDC fan motor for mechanic room (condenser fan)Er COCommunication error between MICOM of main PCB and display MICOMEr dHPoor defrosting errorEr dSDefrosting sensor error caused by short or disconnection of the defrosting…Er FFAbnormality of BLDC fan motor for freezerEr FSFreezer sensor error caused by short or disconnection of the freezer sensor.Er gFFlow meter (sensor) defect caused by error of flow meter, water input, low…Er HSHumidity sensor error caused by short or disconnection of the humidity sensor.Er IFAbnormality of BLDC fan motor for ice makingEr ISIcing sensor error caused by short or disconnection of the icemaker-related…Er ItIce maker kit defect caused by electrical system error such as motor, gear…Er rFAbnormality of BLDC fan motor for refrigeratorEr rSRefrigerator sensor error caused by short or disconnection of the refrigerator…Er rtRoom temperature sensor error caused by short or disconnection of the room…Er SSPantry sensor error caused by short or disconnection of the pantry sensor.Service modes (12)
- Display Check FunctionSimultaneously press the Ultra Ice button and Freezer Temperature Adjustment button for a second
- Display Mode (Demo Mode)With the refrigerator door open, press and hold the Refrigerator Temp Button and ICE PLUS Button…
- Display Mode (Showroom Mode)With the refrigerator door open, press and hold the Refrigerator Temp Button and ICE PLUS Button…
- Error Code CheckWithin 3 hours after the error
- Ice-detecting Sensor Diagnosis1
- Icemaker Test ModePress and hold the Fill Key on the icemaker for about 3 seconds. The icemaker will run through 3…
- Power Save Mode TogglePress the ICE PLUS Button and Freezer TEMP button simultaneously for more than 5 seconds to toggle…
- Temperature Unit Toggle (°F / °C)Press and hold the FRZ TEMP and REF TEMP keys at the same time for over 5 seconds.
- Test Mode 1 (Forced Operation)Push the test button on the Main PCB 1 time
- Test Mode 2 (Damper Closed)Push the test button on the Main PCB 2 times
- Test Mode 3 (Forced Defrost)Push the test button on the Main PCB 3 times
- Toggle Display °F / °CPress and hold the FRZ TEMP and REF TEMP keys at the same time for over 5 seconds.
Full entry steps, exit procedures, and test sequences are available in Max.
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