Error code reference

Samsung Refrigerator Error Code Main-Panel Communication Error

Serial communication error between Main PCB and Panel PCB.

Serial communication error between Main PCB and Panel PCB.

First step from the service manual

Confirm cable connection, then replace Main and Panel PCB if problem persists.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
  • Verified part numbers when replacement is required
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