Error code reference

LG Refrigerator Error Code CO E

Communication error between Micom of Main PCB and Display Micom. Possible causes include poor communication connection, poor TR of transmitter and receiver Tx/Rx between display and main board.

SourceLG LHFS28XBS Refrigerator - Full Service Manualp. 22, 43-44

Diagnostic procedure

The full CO E procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check for loose connections, then check voltage at Display PCB CON101 pins 7-6 for 12V and CON101 pins 3-6 for 5V.

SourceLG LHFS28XBS Refrigerator - Full Service Manualp. 22, 43-44

More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Where this code is documented

24 manuals in the MyPros+ library document this code for LG refrigerator.

Models covered by the manuals that document this code

More models are covered than are listed here.

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