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Error code reference

Fisher & Paykel Dishwasher Error Code F52

Lid motor undercurrent

Fisher & Paykel codesFisher & Paykel dishwasher codes

Lid motor undercurrent - lid motor drawing insufficient current.

First step from the service manual

Check if the lid motor harness is securely and correctly connected; check for water damage, corrosion or arcing.

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

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What F52 means on a Fisher & Paykel dishwasher

The F52 error code on a Fisher & Paykel dishwasher indicates a lid motor undercurrent fault. This means the control board has detected that the lid motor is drawing less current than expected during operation. The lid motor is responsible for raising and lowering the dishwasher drawer lid mechanism, and the control system continuously monitors its current draw to confirm proper mechanical engagement and motor function. When current falls below the expected threshold, the board interprets this as a fault condition and halts the cycle.

The most common starting point for this fault is a wiring or connector issue. A loose, corroded, or damaged harness connection between the control board and the lid motor can interrupt or reduce current flow, producing an undercurrent reading even when the motor itself is functional. Water damage and corrosion at connector pins are particularly common in dishwasher environments due to steam and humidity exposure over time. Arcing at connector points can also burn contacts, increasing resistance and dropping the effective current the motor receives.

If the wiring and connectors check out, the fault may lie with the lid motor itself. A motor with worn windings, internal open circuits, or mechanical binding can draw abnormally low current. A failed or out-of-tolerance motor will need to be replaced to resolve the fault. The control board should be considered as a potential cause only after the harness and motor have been ruled out, as board faults that produce false undercurrent readings are less common but possible.

Source: manufacturer service documentation.

Common causes of F52

  1. 01

    Loose or disconnected lid motor harness

    Wiring / connection

    A harness connector that is not fully seated at the lid motor or control board will reduce or interrupt current flow, triggering the undercurrent fault. Inspect both ends of the harness for proper seating and any signs of pull-out or misalignment.

  2. 02

    Corrosion or water damage at connector pins

    Wiring / connection

    Moisture and steam inside the dishwasher cabinet can corrode connector pins over time, increasing resistance and reducing current to the motor. Look for green or white oxidation buildup, discoloration, or pin pitting at the harness connectors.

  3. 03

    Arcing damage on wiring or connectors

    Part replacement

    Arcing caused by loose connections or moisture intrusion can burn connector contacts or melt insulation, permanently degrading the electrical path. Burned or melted areas on the harness or connector housing are a clear indicator.

  4. 04

    Faulty or worn lid motor

    Part replacement

    A lid motor with degraded windings, an internal open circuit, or mechanical binding will draw insufficient current during operation. If the harness and connectors are in good condition, the motor itself should be tested and replaced if it is not performing within spec.

  5. 05

    Control board fault

    Part replacement

    In rare cases, the control board may incorrectly read or regulate current to the lid motor, generating a false F52 fault. This should only be considered after the wiring, connectors, and motor have been inspected and confirmed to be in good condition.

See the test procedure for each cause

Frequently asked questions about F52

What does F52 mean on a Fisher & Paykel dishwasher?
F52 on a Fisher & Paykel dishwasher means the control board has detected a lid motor undercurrent condition, meaning the lid motor is drawing less current than expected. This signals a problem with the electrical supply to the motor, the motor itself, or the wiring connecting them. The dishwasher will stop operating until the fault is cleared.
Can I fix the F52 error myself, or do I need a technician?
The first diagnostic step, checking that the lid motor harness is securely connected and inspecting for corrosion or visible damage, is something a knowledgeable DIYer can handle safely with the dishwasher unplugged. If the harness is fine and the motor or control board needs to be replaced, most homeowners will want to call a qualified technician, as those repairs involve disassembling internal components.
Will resetting the dishwasher clear the F52 error?
A reset may temporarily clear the F52 code, but if the underlying cause, such as a loose connector, corroded pins, or a failing motor, is not addressed, the fault will return as soon as the lid motor is activated again. A reset alone is not a repair and should be used only as a diagnostic step to confirm whether the fault is persistent.
Is it safe to continue using my dishwasher with an F52 error showing?
You should not continue running the dishwasher while the F52 fault is active. The error indicates a problem with the lid motor circuit that could involve damaged wiring or a failing motor. Continuing to operate the appliance risks further damage to electrical components and could pose a safety hazard if arcing or wiring damage is involved.
How much does it cost to repair an F52 error on a Fisher & Paykel dishwasher?
Repair costs vary depending on the root cause. If the fix is simply reseating or cleaning a connector, the cost may be limited to a service call fee, typically in the range of $80 to $150. If the lid motor needs replacement, parts and labor combined can range from $150 to $350 or more depending on your location and the technician's rates. A control board replacement, if needed, would be at the higher end of that range or beyond.

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