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Error code reference
LG Refrigerator Error Code E1+E2
Communication error between main PCB and display PCB: no communication for 30 seconds continuously.
SourceLG Kimchi Refrigerator - Service Manual (GR-K192AF)p. 14, 22
Diagnostic procedure
The full E1+E2 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 wiring and connectors between main PCB and display PCB (DC 12V, GND, Send, Receive lines).
SourceLG Kimchi Refrigerator - Service Manual (GR-K192AF)p. 14, 22
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
1 manual in the MyPros+ library documents this code for LG refrigerator.
Models covered by the manuals that document this code
75,000+ service documents · 20,000+ error codes · 100+ brands
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