Fisher & Paykel Washer Error Code 33

Error code 33 on a Fisher & Paykel washer indicates a Phase 1 Water Valve Fault. The control module has detected an electrical or mechanical fault in the water valve circuit during the fill phase of the wash cycle. The water inlet valve system is responsible for controlling the flow of hot and cold water into the drum, and the module continuously monitors the valve circuit for correct operation. When the detected conditions fall outside expected parameters, the fault is logged and the cycle is interrupted.

The most likely starting point for diagnosis is confirming that both water inlet valves are properly connected to the wiring harness. A loose or disconnected electrical connector at either valve solenoid will immediately trigger this fault code, as the module will detect an open or abnormal circuit. Beyond connectivity, the fault can stem from a failed valve solenoid coil, which may show as an open circuit or incorrect resistance when tested with a multimeter.

Additional causes include wiring damage between the control module and the valve assembly, such as chafed insulation, broken wire strands, or corroded terminals. A failed control module that is incorrectly reading or sending signals to the valve circuit is also possible, though this is a less common cause. Systematic diagnosis starting at the valve connectors and working back toward the module will usually identify the fault point efficiently.