mypros+
Error code reference

Samsung Refrigerator Error Code MAIN<->LCD COMMUNICATION ERROR

Communication error between MICOM MAIN and PANEL when communication is not available for 10 seconds; alarm sounds.

SourceSamsung Refrigerator - Service Manual: Bottom Mount Freezer (RF4287/RF4289HA)p. 63

Samsung codesSamsung refrigerator codes
Diagnostic procedure

The full MAIN<->LCD 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
Confirm cable connections, then if no problem found, replace Main and Panel PCB after checking with oscilloscope.

SourceSamsung Refrigerator - Service Manual: Bottom Mount Freezer (RF4287/RF4289HA)p. 63

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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

2 manuals in the MyPros+ library document this code for Samsung refrigerator.

Models covered by the manuals that document this code

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