Fisher & Paykel Washer Error Code 13

Error code 13 on a Fisher & Paykel washer indicates a Phase 1 Pump Fault. Specifically, the display module has detected that the drain pump is running when the control system has not commanded it to operate. This is a monitoring-level fault: the machine's control circuitry is reading pump activity during a phase of the cycle when the pump should be idle. This discrepancy between the expected pump state and the actual pump state triggers the fault and halts normal operation to prevent potential damage.

The most common hardware cause of this fault is a triggered thermal cut-out device within the pump circuit. The thermal cut-out is a safety component that opens the circuit if the pump overheats, typically due to a blockage or prolonged strain. When the thermal cut-out activates, the pump's electrical behavior can appear abnormal to the display module, registering as unexpected activity. A blocked pump impeller is another direct cause: debris lodged in the pump forces the motor to work harder, raising operating temperature and potentially causing erratic electrical signals on the pump circuit.

Diagnosis should begin with a visual and physical inspection of the pump for blockages, foreign objects, or debris caught in the impeller. The thermal cut-out should also be tested for continuity. If the cut-out has tripped, clearing the blockage and allowing the pump to cool may allow it to reset automatically, though a failed thermal cut-out will require component replacement. Wiring integrity between the pump and the control board should also be inspected for loose connections or damaged insulation.