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Error code reference

Fisher & Paykel Washer Error Code 105

Display to Motor Control Module communications time-out error

Fisher & Paykel codesFisher & Paykel washer codes

Display to Motor Control Module communications time-out error - Display Module lost communication with Motor Control Module.

First step from the service manual

Replace Display Module.

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

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What 105 means on a Fisher & Paykel washer

Error code 105 on a Fisher & Paykel washer indicates a communications time-out between the Display Module and the Motor Control Module (MCM). These two control boards exchange data continuously during washer operation via an internal communication bus. When the Display Module fails to receive a valid response from the Motor Control Module within the expected time window, the washer halts operation and stores this fault code. The communication link is critical for coordinating cycle commands, motor speed feedback, and fault reporting.

The Display Module acts as the primary interface and controller, sending instructions to the Motor Control Module which drives the wash motor and manages load-related functions. A time-out error means the Display Module initiated communication but the Motor Control Module either did not respond or responded with corrupted data. This can be caused by a fault in either module, a wiring harness issue between the two boards, or a power supply problem affecting one of the modules.

Because the first recommended diagnostic step is replacement of the Display Module, the Display Module itself is the primary suspect. It may be generating the time-out error due to an internal failure in its communication circuitry rather than an actual fault in the Motor Control Module. However, technicians should also inspect the wiring harness and connectors between the two modules before condemning either board, as loose or corroded connections can produce identical symptoms.

Source: manufacturer service documentation.

Common causes of 105

  1. 01

    Faulty Display Module

    Part replacement

    The Display Module is the primary suspect for this error. An internal failure in the module's communication circuitry can cause it to time out when attempting to contact the Motor Control Module, even when the MCM itself is functioning correctly.

  2. 02

    Loose or damaged wiring harness connection

    Wiring / connection

    The connector or harness linking the Display Module to the Motor Control Module may be loose, corroded, or have a broken wire. Inspect both connectors at each board for secure seating and signs of corrosion or pin damage.

  3. 03

    Faulty Motor Control Module

    Part replacement

    If replacing the Display Module does not resolve the error, the Motor Control Module may have failed and is not responding to communication requests. This would prevent the Display Module from completing the handshake within the required time window.

  4. 04

    Power supply interruption to one of the modules

    Wiring / connection

    Inadequate or intermittent voltage supply to either the Display Module or Motor Control Module can disrupt communication. Check for stable power delivery at both boards.

See the test procedure for each cause

Frequently asked questions about 105

What does 105 mean on a Fisher & Paykel washer?
Error code 105 indicates a communications time-out between the Display Module and the Motor Control Module. The Display Module initiated communication with the Motor Control Module but did not receive a valid response within the required time. The washer stops operation when this fault is detected. The primary diagnostic step is to replace the Display Module.
Can I fix error code 105 on my Fisher & Paykel washer myself?
Inspecting the wiring harness and connectors between the two control boards is something a technically confident DIYer can attempt. However, if the wiring is intact, resolving this error typically requires replacing the Display Module or Motor Control Module, which involves working with electrical components inside the machine. If you are not comfortable with appliance electronics, a qualified technician is recommended.
Will resetting my Fisher & Paykel washer clear error code 105?
A power reset may temporarily clear the fault display, but if the underlying communication problem persists between the Display Module and Motor Control Module, the error will return. A reset is not a substitute for diagnosing and repairing the root cause. Continuing to cycle power without addressing the fault is unlikely to resolve the issue.
Is it safe to use my Fisher & Paykel washer when error code 105 is showing?
The washer will typically halt operation when this error is active, preventing normal use. You should not attempt to force the machine through a cycle while a communication fault is present. Leave the washer powered off until the fault has been diagnosed and repaired.
How much does it cost to repair error code 105 on a Fisher & Paykel washer?
Repair costs depend on which component has failed. A Display Module replacement typically ranges from moderate to higher parts cost, and a Motor Control Module can be similarly priced or higher. Adding professional labor charges will increase the total. If only a wiring harness connection needs reseating or cleaning, the repair cost can be minimal.

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