Fault 66 is the current label for a level-sensor signal above 90 kHz. The manual action is a new Motor Control module.
Model compatibility: Fisher & Paykel reuses codes across series and model years, so 66 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
Pressure transducer error, frequency above 90 kHz, which supersedes code 65 from V41 Motor Controller code onwards.
When the display reads 66, the manual’s note on it matters most: starting with V41 Motor Controller software, this number takes over from 65. The condition behind it has not changed, and the label is all that moved.
Entry details
Heading: a pressure transducer error, with the Ptx frequency above 90 kHz
Description: signals from the water level sensor reached the Motor Control module at higher than normal frequencies
Primary source: that same Motor Control module
Action: swap in a new Motor Control module
Old number, new number
Fault 65 and fault 66 describe one situation, a transducer frequency beyond 90 kHz, and both end in a new Motor Controller module. Which of the two appears is decided by the controller’s software version: older code gives 65, V41 and newer gives 66. The manual spells the part’s name two slightly different ways between the entries, yet nothing suggests it means two components. A technician will ask which number you see.
Job of the transducer
Inside the washer, the transducer changes the water pressure in the tub into an electrical signal, and the controller reads a water level from it. Fault 66 means that signal is arriving too fast.
What you will not find
There is no secondary source, no inspection of the pressure tube and no reset that an owner could try. Hose-checking advice that belongs to other pressure faults does not apply to this one. The work centres on the controller and belongs to a technician.
Fault 64: the opposite case, a signal under 66 kHz
Washer repair visits in Los Angeles for code 66
Fisher & Paykel washer showing 66 in Los Angeles? Dial (310) 872-1939, read out the code and the model number, and leave the module untouched. Details of what we cover are on the washer service page.
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.
