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Error code reference

Fisher & Paykel Dishwasher Error Code F25

Motor loss of phase.

Fisher & Paykel codesFisher & Paykel dishwasher codes

Motor loss of phase.

First step from the service manual

Check if the motor rotor is correctly installed.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What F25 means on a Fisher & Paykel dishwasher

The F25 error code on a Fisher & Paykel dishwasher indicates a motor loss of phase condition. This means the wash motor, which is a multi-phase (typically three-phase) brushless DC or AC induction motor, is not receiving the correct electrical phase signals needed to operate. When one or more phases of the motor circuit are lost or interrupted, the motor controller detects an imbalance and shuts down operation to prevent damage to the motor windings or drive electronics.

The most common starting point for diagnosing this fault is verifying that the motor rotor is correctly seated and installed. If the rotor is displaced, misaligned, or has been recently serviced and reinstalled incorrectly, the motor's internal sensors or Hall effect feedback signals may not register properly, causing the controller to interpret this as a phase loss. Beyond rotor positioning, the fault can also originate in the wiring harness between the control board and the motor, or within the motor itself.

Technicians should inspect the motor assembly for signs of physical damage, check all connector pins and terminals for corrosion or looseness, and verify continuity across the motor phase windings. If wiring and the rotor installation check out, the fault may point to a failed motor drive module or a defective main control board that is not correctly generating or reading the phase signals.

Source: manufacturer service documentation.

Common causes of F25

  1. 01

    Motor rotor incorrectly installed or displaced

    Wiring / connection

    If the rotor is not seated properly within the motor assembly, the phase feedback signals will not be detected correctly. This is the first thing to check, especially after any recent service work on the motor or pump.

  2. 02

    Loose or damaged wiring harness connections

    Wiring / connection

    Corroded, loose, or broken connector pins in the harness running between the motor and the control board can interrupt one or more phase signals. Inspect all connectors at both the motor and board ends for damage or poor seating.

  3. 03

    Failed motor windings

    Part replacement

    An open or shorted winding inside the motor will cause a phase to drop out entirely. Testing resistance across each winding pair will help identify whether the motor itself has failed internally.

  4. 04

    Faulty motor drive module or control board

    Part replacement

    If the board is not generating or correctly reading the phase signals required to drive the motor, the F25 code will trigger even when the motor and wiring are intact. This is typically diagnosed after ruling out the motor and harness.

  5. 05

    Motor seized or mechanically obstructed

    Part replacement

    A motor that cannot rotate freely due to a foreign object or bearing failure may cause abnormal phase feedback, triggering this fault. Check that the motor and pump impeller spin freely by hand.

See the test procedure for each cause

Frequently asked questions about F25

What does F25 mean on a Fisher & Paykel dishwasher?
F25 indicates a motor loss of phase fault, meaning the wash motor is not receiving all of the electrical phase signals it needs to operate. The dishwasher shuts down to protect the motor and drive electronics from damage. The first diagnostic step is to verify that the motor rotor is correctly installed and properly seated.
Can I fix the F25 error on my Fisher & Paykel dishwasher myself?
Some causes, such as a displaced motor rotor or a loose wiring connector, can be addressed by a confident DIYer comfortable working with appliance components. However, diagnosing failed motor windings or a faulty control board requires electrical testing with a multimeter and familiarity with appliance electronics. If you are not comfortable with these steps, a qualified technician is recommended.
Is it safe to keep using my dishwasher when F25 is displayed?
No. The F25 fault causes the dishwasher to halt its cycle as a protective measure, and the appliance should not be forced to run while this fault is active. Attempting to bypass the error and run the motor in a loss-of-phase condition can cause additional damage to the motor windings or control board.
Will resetting the dishwasher clear the F25 error code?
A power reset may temporarily clear the displayed code, but the F25 fault will return if the underlying cause has not been corrected. The motor phase loss condition must be physically resolved, whether that means reseating the rotor, repairing wiring, or replacing a faulty component, before the error will stay cleared.
How much does it cost to repair a Fisher & Paykel dishwasher showing F25?
Repair costs depend on what is causing the fault. If the fix is simply reseating the motor rotor or reconnecting a loose harness, labor costs alone may apply, typically in the range of $80 to $150. If the motor or control board needs replacement, total costs including parts and labor can range from $200 to $450 or more depending on your location and the specific components required.

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