Fault 64 means the pressure transducer signal was lower in frequency than normal, below 66 kHz.
Model compatibility: Fisher & Paykel reuses codes across series and model years, so 64 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
The Motor Controller received water-level sensor signals below the normal frequency, under 66 kHz, on Phases 5 and 6.
The sensor and the threshold
The manual calls the water-level sensor on Phase 5 and 6 washers a pressure transducer, shortened to Ptx. Fault 64 means the signal it sends has a frequency under 66 kHz, lower than expected.
Key points from the entry
Signal frequency: below 66 kHz.
Received by the Motor Controller module.
Applies to Phase 5 and 6.
Primary source and action: replace the Motor Controller module.
Frequency, not level
The fault describes the electrical signal of the level sensor. No hose or filter check is given for it.
Models
The manual’s Phase 5 table lists GW709, GW609 and GWL09, and Phase 6 lists GW711, GW611 and GWL11, each with Intuitive Display (IW) versions separate. Match the label on your washer to these before deciding the entry applies.
Safe handling
Record the code and model number, and do not open the electronics while the washer is connected to power. The manual directs the repair to the module, which a technician replaces.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your Fisher & Paykel appliance?
Book a specialist visit for a clear estimate and approval before any repair.
