Fisher & Paykel Washer Error Code 163

Error code 163 on a Fisher & Paykel washer indicates a Valve Reset Pin Connect Fault. Specifically, the Motor Controller has detected that its PCB connection to the cold water inlet valve reset pin circuit is open circuit, meaning the electrical path is broken or absent. This fault is categorized as a Phase 4 to 6 error, referring to the stage in the wash cycle where cold water valve operation is required. Without a valid connection, the Motor Controller cannot send the signal needed to operate the cold valve, and the cycle cannot proceed normally.

The root cause of this fault is typically an internal failure within the Motor Controller module itself rather than an external wiring or valve problem. The reset pin connection is part of the PCB circuitry on the Motor Controller, so an open circuit condition at this point generally points to a failed or damaged controller board. Possible contributing factors include PCB trace damage, a failed onboard component, or connector degradation at the board level. Unlike some valve faults that originate at the solenoid or wiring harness, this code is specific to the controller-side connection.

Because the fault is detected internally by the Motor Controller and the primary diagnostic step is replacement of that module, technicians should not focus initial troubleshooting on the cold valve solenoid or inlet hose assembly. The Motor Controller is the component responsible for both sensing and signaling in this circuit, and an open circuit at the reset pin confirms the board is no longer functioning correctly. Replacing the Motor Controller module is the recommended corrective action.