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Error code reference

Fisher & Paykel Washer Error Code 86

Phase 2-3

Fisher & Paykel codesFisher & Paykel washer codes

Phase 2-3: Display / Motor Controller communications error.

First step from the service manual

Refer to fault code 106 for action.

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

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What 86 means on a Fisher & Paykel washer

Error code 86 on a Fisher & Paykel washer indicates a Phase 2-3 communications failure between the display board and the motor controller board. These two control modules exchange data continuously during a wash cycle to coordinate motor operation, cycle progression, and user interface feedback. When that communication link breaks down or produces invalid signals, the machine registers this fault and halts operation to prevent uncontrolled motor behavior or cycle errors.

The root cause is typically a fault in the data pathway connecting the two boards. This can stem from a loose, damaged, or corroded wiring harness connector between the display and motor controller, a failed display board that is no longer transmitting correctly, or a motor controller board that has lost the ability to receive or respond to signals. Power supply instability can also disrupt the communication bus. Fisher & Paykel directs technicians to reference fault code 106 for the specific diagnostic and repair actions applicable to this error, as code 106 covers the detailed board-level diagnostics for this communication fault path.

Source: manufacturer service documentation.

Common causes of 86

  1. 01

    Loose or disconnected wiring harness

    Wiring / connection

    The ribbon cable or wiring harness connecting the display board to the motor controller can work loose over time due to vibration. Inspect both connectors for secure seating and signs of fretting or corrosion.

  2. 02

    Damaged wiring between boards

    Part replacement

    Wires in the harness can develop breaks, pinches, or chafing damage especially if routed near moving parts. A visual inspection along the full harness length and a continuity test can identify a broken conductor.

  3. 03

    Failed motor controller board

    Part replacement

    The motor controller board may have experienced component failure that prevents it from maintaining communication with the display. This is often confirmed after wiring and connectors have been ruled out.

  4. 04

    Failed display board

    Part replacement

    The display board itself may have failed and be unable to send or receive communication signals correctly. Swapping or testing the display board is a valid diagnostic step after checking the wiring.

  5. 05

    Power supply instability

    Wiring / connection

    Insufficient or fluctuating voltage reaching one or both boards can disrupt the communication bus. Check supply voltage and inspect the power board output if other causes have been eliminated.

See the test procedure for each cause

Frequently asked questions about 86

What does 86 mean on a Fisher & Paykel washer?
Error code 86 signals a Phase 2-3 communications error between the display board and the motor controller board. The two boards are not exchanging data correctly, which causes the washer to stop operating. Fisher & Paykel links this fault to the diagnostics outlined under fault code 106 for resolution.
Can I fix error code 86 on my Fisher & Paykel washer myself?
Some causes, like a loose wiring connector, can be addressed by a confident DIYer who is comfortable working inside the machine after disconnecting power. However, if the fault lies with the motor controller or display board, board replacement typically requires component sourcing and some technical skill. Referencing the fault code 106 diagnostic steps is the recommended starting point.
Will resetting my Fisher & Paykel washer clear error code 86?
A power reset may temporarily clear the displayed error, but if the underlying wiring or board fault still exists, the code will return once the machine attempts to run a cycle. A reset alone is not a repair and should be followed by proper diagnosis.
Is it safe to use my Fisher & Paykel washer while error code 86 is showing?
The washer will typically stop operation when this error is active, which is the machine protecting itself from uncontrolled behavior. You should not attempt to bypass the fault or force the machine to run until the communications issue has been diagnosed and corrected.
How much does it cost to repair error code 86 on a Fisher & Paykel washer?
Repair costs depend heavily on the root cause. If only a wiring connector needs reseating, the cost can be minimal. If a motor controller or display board requires replacement, parts and labor costs typically range from around $150 to $400 or more depending on parts availability and local labor rates.

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