Error code reference

Samsung Refrigerator Error Code COMP UNDER VOLTAGE ERROR

Low input voltage detected at the compressor inverter circuit.

Low input voltage detected at the compressor inverter circuit.

First step from the service manual

Check voltage/resistance of R309, R310, R311, R312, C308 (Short/Open); check input voltage.

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
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