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Error code reference

Fisher & Paykel Dishwasher Error Code FC0

Motor controller communications fault

Fisher & Paykel codesFisher & Paykel dishwasher codes

Motor controller communications fault - communication failure between wash controller and motor controller.

First step from the service manual

Run a rinse cycle on both tubs to check if the product operates correctly.

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

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What FC0 means on a Fisher & Paykel dishwasher

The FC0 error code on a Fisher & Paykel dishwasher indicates a motor controller communications fault, specifically a failure in the communication link between the wash controller (the main control board) and the motor controller (the board responsible for driving the wash motor). These two controllers rely on a continuous data exchange to coordinate motor speed, direction, and timing throughout each wash cycle. When this communication breaks down, the dishwasher cannot safely operate the wash motor and will halt the cycle to prevent damage.

The most common triggers for FC0 include loose or corroded wiring connectors between the two controller boards, a failed motor controller, or a faulty wash controller. Because Fisher & Paykel dishwashers can be dual-drawer or single-tub models, the fault may affect one or both tubs depending on the unit's configuration and which controller has failed. Intermittent connection issues caused by vibration during normal operation can also produce this fault sporadically rather than continuously.

The recommended first diagnostic step is to run a rinse cycle on both tubs to determine whether the appliance can complete basic operation. If the rinse cycle runs without triggering FC0, the fault may be intermittent and related to a marginal wiring connection rather than a fully failed component. If the error persists through the rinse cycle, further inspection of the wiring harness, connectors, and controller boards is required to isolate the root cause.

Source: manufacturer service documentation.

Common causes of FC0

  1. 01

    Loose or disconnected wiring connector

    Wiring / connection

    The communication wiring harness between the wash controller and motor controller can work loose due to vibration over time. Inspect all connectors between the two boards for proper seating and signs of corrosion or pin damage.

  2. 02

    Corroded or damaged wiring harness

    Part replacement

    Moisture exposure inside the dishwasher can corrode connector pins or damage wire insulation, interrupting the communication signal. Look for green or white corrosion on terminals and any signs of chafing or pinched wiring.

  3. 03

    Failed motor controller board

    Part replacement

    The motor controller board itself may have failed, preventing it from sending or receiving communication signals. This is a likely cause when the wiring checks out normal and the fault is consistent across all cycle types.

  4. 04

    Failed wash controller board

    Part replacement

    If the main wash controller has malfunctioned, it may be unable to initiate or maintain communication with the motor controller. This is less common than a motor controller failure but should be considered if replacing the motor controller does not resolve the fault.

  5. 05

    Intermittent fault triggered by heat or vibration

    Wiring / connection

    Some FC0 faults occur only during certain cycle phases when heat or motor vibration causes a marginal connection to drop out temporarily. If the rinse cycle completes without error, focus the diagnosis on connector integrity rather than board replacement.

See the test procedure for each cause

Frequently asked questions about FC0

What does FC0 mean on a Fisher & Paykel dishwasher?
FC0 indicates a motor controller communications fault, meaning the wash controller and motor controller boards have lost their communication link. Without this link, the dishwasher cannot safely run the wash motor and will stop the cycle. The fault can be caused by a loose wiring connection, a corroded harness, or a failed controller board.
Can I fix the FC0 error myself without a technician?
Some FC0 faults can be resolved without professional help if the cause is a loose or disconnected wiring connector, which does not require any parts. However, if the fault is caused by a failed motor controller or wash controller board, replacing those components can be complex and may require a qualified technician to safely access internal wiring and confirm the correct diagnosis before purchasing parts.
Will resetting the dishwasher clear the FC0 error?
A reset may temporarily clear the FC0 code if the fault is intermittent, but it will return if the underlying cause is not addressed. Fisher & Paykel recommends running a rinse cycle on both tubs after the code appears to assess whether the machine can operate correctly. If the error reappears during or after the rinse cycle, a reset alone will not resolve the problem.
Is it safe to keep using the dishwasher when FC0 is displayed?
FC0 is not a water leak or electrical shock hazard, but the dishwasher will not complete normal wash cycles with this fault active. Continuing to attempt cycles without addressing the fault is unlikely to cause further damage, but the machine will not clean dishes effectively and may repeatedly stop mid-cycle. It is best to diagnose and resolve the fault before regular use.
How much does it cost to repair an FC0 error on a Fisher & Paykel dishwasher?
Repair costs vary depending on the root cause. If the fix is simply reseating a loose connector, you may pay only a service call fee, typically in the range of $80 to $150. If a motor controller or wash controller board needs replacement, parts and labor combined can range from $200 to $500 or more depending on your region and the specific model. Getting a diagnostic assessment before authorizing parts replacement is recommended to avoid unnecessary costs.

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