Error code reference

Samsung Refrigerator Error Code 43

AutoFill Infuser Overflow error

AutoFill Infuser Overflow error – water overflow detected at autofill pitcher sensor.

First step from the service manual

Check voltage of MAIN PCB CN40-"16" ↔ CN40-"18"; 0V–4.5V indicates water overflow, 4.5V–5V indicates no problem.

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

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