Model reference

LG GM-749FTCA

Name: LG GM-749FTCA
Brand: LG

Refrigerator

1 document7 error codes4 service modes

Available documentation

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M+ Max·LG Refrigerator

Er 1 on my LG GM-749FTCA

M+

Freezer sensor failure - cable cut or

From Service Manual 776708, p.40:

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

Ice Maker Test ModePress and hold the FILL button for 3 seconds.
Reset (exit test mode)While in Test Mode 2, press and hold the ICE PLUS button and the Freezer Temperature ADJUST button…
Test Mode 1 (Forced Cooling)Press and hold the ICE PLUS button and the Freezer Temperature ADJUST button simultaneously for…
Test Mode 2 (Forced Defrost)While in Test Mode 1, press and hold the ICE PLUS button and the Freezer Temperature ADJUST button…

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

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