Model reference

LG LFC20770ST/00

Name: LG LFC20770ST/00
Brand: LG

Refrigerator

1 document8 error codes4 service modes

Available documentation

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M+ Max·LG Refrigerator

dH on my LG LFC20770ST/00

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Unsuccessful Defrosting Operation –

From Service Manual 627018, p.30:

1.Access service mode to confirm the active fault code and read stored error history.

2.Measure control board supply voltage at test points. Expected: 12 VDC and 5 VDC.

3.Inspect all connectors on the main control for corrosion or backed-out pins.

Part EBR73304205

Main control board

CodeMeaning

Error Check ModePress ICE PLUS + FREEZER TEMP keys simultaneously for more than 3 seconds
Ice Maker TEST MODEPress and hold the Ice Maker TEST SWITCH for more than 3 seconds
TEST MODE #1Press the TEST SWITCH on the Main PCB once.
TEST MODE #2Press the TEST SWITCH on the Main PCB twice.

Full entry steps, exit procedures, and test sequences are available in Max.

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