Fisher & Paykel Washer, Dishwasher, Oven Error Code 51

Error code 51 on Fisher & Paykel appliances signals a diverter fault. The diverter is a valve or motor-driven component that routes water to the correct pathway during a cycle. The appliance has detected that this component is not reaching its expected position or is not responding correctly. The unit will stop operating until the fault is resolved.

It is not recommended to continue using the appliance while error code 51 is active. The diverter controls water routing, and if it is stuck or failed, water may not flow correctly, which can lead to incomplete cycles, water not draining, or potential leaks. The appliance will typically halt operation on its own when this code is triggered.

Repair costs vary depending on the specific component that has failed and whether you hire a technician or perform the repair yourself. Diverter motor or valve assembly parts typically range from around $30 to $150 or more depending on the model. Professional labor charges for diagnosis and replacement can add $80 to $200 or more on top of parts. If the control board is found to be at fault, costs will be higher.

Some causes of error code 51 can be addressed without professional help. You can inspect the diverter area for visible obstructions like food debris or scale and check that all wiring connections to the diverter are secure. If the diverter motor or valve housing is physically damaged or electrically failed, replacing the part is the required fix and involves disassembly of the appliance. If you are not comfortable working with internal components, a qualified technician should perform the repair.

A reset may temporarily clear the error code display, but if the underlying diverter fault is still present, the code will return once the appliance attempts the same cycle stage again. A reset is useful for confirming whether the fault is intermittent, but it does not repair a failed motor, obstructed valve, or damaged wiring. The root cause must be identified and corrected for the error to be permanently resolved.