Model reference
LG LFX21980ST
Refrigerator
6 documents10 error codes11 service modes
Available documentation
Service Manual
- Refrigerator Service Manual54 pg
- Refrigerator Service Manual54 pg
- Refrigerator Service Manual54 pg
Bulletin
- SERVICE BULLETIN No. CREF20070530 - Change of compressor (LD72LACH to LD72LACM) on 21 & 25 cu. ft. French Door refrigerators2 pg
- Service Bulletin - In Door Icemaker has changed3 pg
Training
- LG Appliance Training Kitchen Series Appliances - Refrigerator252 pg
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Error codes (10)
CodeMeaning
Er CFAbnormality of BLDC fan motor for mechanic (condenser) roomEr COCommunication error between main PCB micom and display micom.Er dHPoor defrostingEr dSShort or disconnection of defrosting sensor.Er FFAbnormality of BLDC fan motor for freezerEr FSShort or disconnection of freezer sensor.Er IFAbnormality of BLDC fan motor for ice makingEr ISShort or disconnection of icing sensor.Er rSShort or disconnection of refrigerator sensor.Er rtRoom temperature sensor error (displayed when ICE PLUS key and Freezer Temp key…Service modes (11)
- Icemaker Test ModePress and hold the icemaker Fill Key for 3 seconds.
- LCD Check FunctionSimultaneously press the Ice Plus button and Freezing Temperature Adjustment button for one second.
- RESETPush the test button one time while in TEST3 mode.
- RESET (Exit Test Mode)["Push test button one time while in TEST3 mode."]
- Temperature Display Toggle (°F/°C)Press and hold the FRZ TEMP and REF TEMP keys at the same time for over 5 seconds.
- TEST1 (Forced Cooling - Damper Open)["Push test button one time on main PCB controller."]
- TEST1 (Forced Cooling)Push the test button one time on the main PCB controller.
- TEST2 (Damper Close Test)Push test button once while in TEST1 mode.
- TEST2 (Damper Close)Push the test button one time while in TEST1 mode.
- TEST2 (Forced Cooling - Damper Closed)["Push test button one time while in TEST1 mode."]
- TEST3 (Forced Defrosting)Push the test button one time while in TEST2 mode.
Full entry steps, exit procedures, and test sequences are available in Max.
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