Error code reference

Samsung Refrigerator Error Code 40Er

Ice pipe heater error

Ice pipe heater error: open error detected by ice pipe heater, separation of housing part, contact error, disconnection, or short circuit.

First step from the service manual

The voltage of MAIN PCB CN90 1PIN - 5PIN shall be 7V~12V.

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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