mypros+
Error code reference

Fisher & Paykel Washer Error Code 27

Valve fault

Fisher & Paykel codesFisher & Paykel washer codes

Valve fault — Motor Control Module measured a voltage from the valve diagnostic circuit indicating the cold valve or both cold and hot valve or dispensing valves are faulty.

First step from the service manual

Check the valve harnesses are correctly fastened to the valves and the Motor Control Module, and that pins are not bent backwards.

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

MyPros+ Max

Get the full diagnostic procedure for 27.

  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
  • Verified part numbers when replacement is required
Get the full procedure

$29/month · Cancel anytime · Or $9.95 3-day pass

What 27 means on a Fisher & Paykel washer

Error code 27 on a Fisher & Paykel washer indicates a valve fault detected by the Motor Control Module (MCM). The MCM continuously monitors a diagnostic circuit that measures voltage signals from the water inlet valves. When the measured voltage from this circuit falls outside the expected range, the MCM interprets this as a fault condition affecting the cold water valve, both the cold and hot water valves simultaneously, or the dispensing valves. This fault points to a problem in the valve circuit itself rather than a broader electrical failure.

The most common root causes involve physical connection issues at the harness level. Loose connectors, partially seated plugs, or pins that have been bent or pushed backward out of their terminal positions can all cause the diagnostic circuit to read an abnormal voltage. These connection problems may develop over time due to vibration during wash cycles. Beyond connection issues, a valve solenoid can fail internally, causing the circuit resistance to shift out of specification and triggering the fault.

Diagnostic work should begin at the harness connections, confirming that each valve connector is fully seated at both the valve solenoid and at the Motor Control Module. Pins should be inspected individually for bending or backing out of the connector housing. If connections are confirmed secure and undamaged, the valve solenoids themselves should be tested for correct resistance and continuity. The wiring harness between the MCM and the valves should also be inspected for chafing, breaks, or shorts that could distort the voltage reading on the diagnostic circuit.

Source: manufacturer service documentation.

Common causes of 27

  1. 01

    Loose or disconnected valve harness connector

    Wiring / connection

    The wiring connector at the valve solenoid or at the Motor Control Module may have vibrated loose, causing an open or unstable circuit. Check both ends of each valve harness for full seating and secure engagement.

  2. 02

    Bent or retracted connector pins

    Wiring / connection

    Individual pins inside the harness connector can be pushed backward out of position during servicing or from repeated vibration, breaking the circuit contact. Visually inspect each pin at both the valve connector and the MCM connector for proper forward position.

  3. 03

    Failed cold water inlet valve solenoid

    Part replacement

    The solenoid coil inside the cold water valve can fail open or short internally, causing the diagnostic circuit voltage to read outside the acceptable range. A failed solenoid requires valve replacement.

  4. 04

    Failed hot water inlet or dispensing valve solenoid

    Part replacement

    When the MCM detects a fault across multiple valves simultaneously, one or more solenoid coils in the hot or dispensing valves may have failed. Each solenoid should be tested individually for proper resistance and continuity.

  5. 05

    Damaged wiring harness between valves and MCM

    Part replacement

    Chafing, pinching, or a break in the wiring harness running from the inlet valves to the Motor Control Module can introduce resistance or create a short that skews the diagnostic circuit voltage. Inspect the full harness routing for damage.

See the test procedure for each cause

Frequently asked questions about 27

What does 27 mean on a Fisher & Paykel washer?
Error code 27 means the Motor Control Module has detected an abnormal voltage reading from the valve diagnostic circuit. This indicates a fault with the cold water valve, both the cold and hot water valves, or the dispensing valves. The fault can be caused by loose wiring connections, bent connector pins, or a failed valve solenoid. The washer will not operate normally until the fault is resolved.
How do I fix error code 27 on my Fisher & Paykel washer?
Start by checking all harness connectors at the inlet valves and at the Motor Control Module, making sure each connector is fully seated and that no pins are bent or pushed backward. If connections look good, test the solenoid coils on the cold, hot, and dispensing valves for continuity and proper resistance. Also inspect the wiring harness for any visible chafing or damage along its routing path. If a valve solenoid has failed, it will need to be replaced.
Will resetting my Fisher & Paykel washer clear error code 27?
A power reset may temporarily clear the code, but if the underlying valve or wiring fault is still present, the error will return once the machine attempts to operate the affected valve. The fault needs to be diagnosed and repaired rather than simply reset. Repeatedly resetting without fixing the cause will not restore normal operation.
Is it safe to use my Fisher & Paykel washer when error code 27 is showing?
It is not recommended to continue using the washer while error code 27 is active. A faulty valve circuit can result in incorrect water fill behavior, and the MCM has halted normal operation to prevent potential issues. Running the machine while the fault is unresolved could place additional stress on related components.
How much does it cost to repair error code 27 on a Fisher & Paykel washer?
If the fault is only a loose or damaged connector, repair costs may be minimal, covering only labor time for diagnosis. If a water inlet valve solenoid needs to be replaced, parts costs typically range from around $30 to $100 or more depending on the specific valve, with additional labor charges if a technician performs the repair. Diagnosing the exact failed component first is important to avoid replacing parts unnecessarily.

Related Fisher & Paykel washer codes

All Fisher & Paykel washer codes
View all 175 Fisher & Paykel washer codes

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass