Fisher & Paykel Washer Error Code 6

Error code 6 on a Fisher & Paykel washer indicates a problem with the pressure sensor signal. The specific module receiving the faulty signal depends on the phase of operation. In Phase 1, the Display Module is detecting an incorrect signal from the pressure sensor. In Phases 2 through 4, the Motor Control Module is receiving the out-of-range or corrupted pressure sensor signal. The pressure sensor is responsible for monitoring water level inside the drum, and when the signal it transmits falls outside expected parameters, the control system flags this code and halts operation to prevent overfilling, underfilling, or motor damage.

The pressure sensor communicates water level data through a signal line to the relevant control module. If that signal is absent, erratic, or outside the acceptable voltage or frequency range, the receiving module cannot accurately determine water level and triggers code 6. The issue may originate at the sensor itself, in the wiring harness connecting the sensor to the module, or within the control module that interprets the signal.

Because the diagnostic path differs by phase, the recommended first step for a Phase 1 fault is replacing the Display Module, while Phase 2 through 4 faults direct the technician to replace the Motor Control Module. Before replacing any module, inspecting the wiring and connector integrity between the pressure sensor and the affected module is a logical preliminary step, as damaged or corroded connections can produce exactly this type of incorrect signal condition.