Model reference

LG LRDC22731ST

Name: LG LRDC22731ST
Brand: LG

Refrigerator

4 documents5 error codes14 service modes

Available documentation

Service Manual

Refrigerator Service Manual49 pg
Covers this model
Refrigerator Service Manual63 pg
Covers this model

Bulletin

Bottom Freezer Gasket Improvement (22cuft WB)3 pg
Covers this model

Installation Guide

BOTTOM FREEZER REFRIGERATOR User's Guide36 pg
Covers this model

MyPros+ Max

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Er dH on my LG LRDC22731ST

M+

Failure of defrost mode — defrost

From Service Manual 210774, p.26:

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

Error codes (5)

CodeMeaning

Er dHFailure of defrost mode Er dSFailure of defrost sensor due to cut or short circuit wire.Er FFFailure of BLDC fan motor at freezing compartment Er FSFailure of freezer sensor due to cut or short circuit wire.Er rSFailure of refrigerator sensor due to cut or short circuit wire.

Service modes (14)

Demonstration ModeWhen the WARMER key of refrigerator Temp control or of freezer Temp control is at the warmest…
Freezer Fan RPM Variable CheckWhile freezer fan is in operation, press the WARMER key in Refrigerator and Freezer Temp Control…
Ice Maker Fill Test ModePress and hold the Fill Key for 3 seconds.
Ice Maker Test ModePress and hold the ice maker water supply control (Fill) key for 3 seconds.
Icemaker Test ModePress and hold the water supply control KEY for 3 seconds.
LED Check ModePress and hold the WARMER button in the refrigerator temperature control and the WARMER button in…
Reset (from TEST)While in TEST2, press Express Freezing key and COLDER key of Freezer Temp at the same time for more…
Reset from TEST MODEWhile in TEST MODE 2, press and hold Express Freezing key and COLDER key of Freezer Temp at the…
Temperature °F/°C Mode ChangePress and hold COLDER key of Freezer and COLDER key of Refrigerator simultaneously for over 1…
Temperature Mode Change (°F/°C)Press and hold COLDER key of Freezer and COLDER key of Refrigerator simultaneously for over 1…
TEST MODE 1 (Forced Cooling)Press and hold Express Freezing key and COLDER key of Freezer Temp at the same time for more than 3…
TEST MODE 2 (Forced Defrosting)While in TEST MODE 1, press and hold Express Freezing key and COLDER key of Freezer Temp at the…
TEST1Press Express Freezing key and COLDER key of Freezer Temp at the same time for more than 3 seconds.
TEST2While in TEST1, press Express Freezing key and COLDER key of Freezer Temp at the same time for more…

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

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