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Error code reference
Samsung Refrigerator Error Code Communication Error
Panel MICOM and MAIN MICOM communication failure - no response for 10 seconds after communication request (Q model LCD display).
SourceSamsung RL55VQ Bottom Mount Freezer - Service Manualp. 62, 64
Diagnostic procedure
The full Communication Error 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 cable connection between Panel and Main PCB; if no problem found, replace Main and Panel PCB after confirming with oscilloscope.
SourceSamsung RL55VQ Bottom Mount Freezer - Service Manualp. 62, 64
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 Samsung refrigerator.
Models covered by the manuals that document this code
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