Error code reference

Samsung Refrigerator Error Code 7C

Convertible zone sensor error

Convertible zone sensor error — voltage between Main PCB CN30 pins 11 and 12 is outside the 4.1V–0.8V range.

First step from the service manual

Measure the voltage between Main PCB CN30 pins 11 and 12; verify it is within 4.1V–0.8V range.

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

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