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Error code reference

Fisher & Paykel Dishwasher Error Code F51

Lid motor not turning

Fisher & Paykel codesFisher & Paykel dishwasher codes

Lid motor not turning - lid actuator motor fails to operate.

First step from the service manual

Check for any obstructions within the tub, especially around the edge where the lid seals.

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

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What F51 means on a Fisher & Paykel dishwasher

The F51 error code on a Fisher & Paykel dishwasher indicates that the lid actuator motor has failed to operate during its expected cycle. Fisher & Paykel drawer-style dishwashers use a motorized lid mechanism to seal the tub at the start of a wash cycle. When the control system sends the command to engage the lid motor and receives no confirmation that the motor has turned, it triggers the F51 fault and halts the cycle to prevent operating with an unsealed tub.

The most common trigger for this error is a physical obstruction inside the tub, particularly along the rim where the lid makes contact to form a seal. Items such as tall utensils, displaced dish racks, or debris lodged at the tub edge can prevent the lid from closing fully, which stalls the motor before it completes its travel. This is why the first diagnostic step is always a visual inspection of the tub interior and the sealing edge before investigating any electrical components.

If no obstruction is present, the fault points to a problem within the lid actuator motor assembly itself, its wiring harness, or the control board that drives it. A failed motor winding, a broken or corroded connector in the harness, or a faulty control board output can all prevent the motor from receiving or responding to its operating signal. Diagnosing beyond the physical obstruction check typically requires accessing the motor assembly and testing for proper voltage supply and continuity through the harness.

Source: manufacturer service documentation.

Common causes of F51

  1. 01

    Physical obstruction at the tub rim

    Wiring / connection

    Tall utensils, displaced rack components, or debris lodged along the sealing edge of the tub can block the lid from traveling through its full range of motion, stalling the motor. Inspect the entire rim area and inside the tub carefully before any other diagnostic steps.

  2. 02

    Lid actuator motor failure

    Part replacement

    The lid actuator motor itself may have failed due to a burned winding or mechanical seizure inside the unit. If the motor receives power but does not turn, the motor assembly needs to be replaced.

  3. 03

    Wiring harness fault

    Wiring / connection

    A broken, corroded, or disconnected connector in the wiring harness between the control board and the lid motor can interrupt the signal or power needed for the motor to operate. Inspect the harness for visible damage and check connector pins for corrosion or looseness.

  4. 04

    Lid mechanism binding or damage

    Part replacement

    The physical linkage or track that guides the lid during opening and closing may be bent, cracked, or worn, causing the mechanism to bind before the motor can complete its travel. Check for visible damage to the lid assembly and hinges.

  5. 05

    Control board output failure

    Part replacement

    If the control board is not delivering the correct voltage signal to the lid motor circuit, the motor will not activate. This is typically diagnosed after ruling out obstructions, motor faults, and harness issues, and it usually requires board-level testing or replacement.

See the test procedure for each cause

Frequently asked questions about F51

What does F51 mean on a Fisher & Paykel dishwasher?
F51 means the lid actuator motor failed to turn when the dishwasher attempted to seal the tub at the start of a cycle. The dishwasher stops operation and displays this code to prevent running with an unsealed tub. The cause can range from a simple physical obstruction to a failed motor or wiring fault. Checking for blocked items inside the tub is always the first step.
How do I fix the F51 error on my Fisher & Paykel dishwasher?
Start by opening the drawer and carefully checking the tub interior and sealing rim for any items, debris, or displaced rack components that could be blocking the lid. If the tub is clear and the error persists, the lid actuator motor, its wiring harness, or the control board may need to be inspected and tested. Repairs beyond clearing obstructions typically require partial disassembly of the drawer unit and some electrical testing.
Is it safe to use my dishwasher when the F51 code is showing?
No, the dishwasher should not be used while F51 is active. The code indicates the tub lid has not sealed properly, and running a cycle in this condition could result in water leaking from the unsealed tub. The machine is designed to halt the cycle when this fault is detected to prevent that outcome.
Will resetting the dishwasher clear the F51 error?
A reset may temporarily clear the code from the display, but the fault will return immediately on the next cycle attempt if the underlying problem has not been resolved. If a physical obstruction was present and has been removed, a reset should allow normal operation to resume. For electrical or mechanical faults, the error will reappear until the faulty component is repaired or replaced.
How much does it cost to repair an F51 error on a Fisher & Paykel dishwasher?
If the cause is simply an obstruction, there is no parts cost involved. If the lid actuator motor needs replacement, parts and labor costs typically range from around $150 to $350 depending on your location and the specific model. A control board replacement, if needed, can push the total cost higher, generally in the range of $250 to $500 or more for parts and labor combined.

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