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LG
Refrigerator
Data independently verified by Elite B2B Technicians
Diagnostic Complet

Error Code Refrigerator Defrost Heater Error LG

Symptom / Description

Refrigerator Defrost Heater Error is displayed.

Root Cause

Loose connection (CON4), relay operation issue, open or short of Fuse-M, defective heater, defective DEF-sensor, gasket not stuck or high temperature loads (hot foods) in product, defective main PCB.

Repair Instructions

UNLOCKED

Reconnect CON4. Enter TEST 2 MODE and check voltage (between pins 5(BL) and 3(BN) of CON4, 230 V AC). Enter TEST 1 MODE and check voltage (0 V AC). If abnormal, replace Main PCB. Also check resistance of Fuse-M, heater and DEF-sensor.

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