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Error code reference

Fisher & Paykel Washer Error Code 237

Temperature Sensor Error

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Temperature Sensor Error: Electronics picked up a continuity problem, same as fault code 10 or 41 (Phase 6).

First step from the service manual

Replace the Thermistor (temperature sensor).

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

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What 237 means on a Fisher & Paykel washer

Error code 237 on a Fisher & Paykel washer indicates a Temperature Sensor Error, specifically a continuity problem detected by the machine's electronics in the thermistor circuit. This fault is functionally equivalent to fault codes 10 and 41 (Phase 6), meaning the control board has detected an open or broken circuit in the temperature sensor loop rather than a simple out-of-range reading. The thermistor is a resistive temperature-sensing component; when continuity is lost, the electronics cannot measure water temperature and trigger this fault to prevent incorrect cycle operation.

The thermistor is typically located in the wash tub or water path, and its resistance value changes predictably with temperature. A continuity failure means the circuit is completely broken somewhere, which points to a failed thermistor, a damaged or disconnected wiring harness between the sensor and the control board, or a corroded connector causing an open circuit. Intermittent continuity problems can also appear after physical stress to the wiring during installation, service, or vibration over time.

Because this code is tied to a hard continuity fault rather than a drifting resistance reading, the diagnostic path is more straightforward than general sensor errors. The first recommended step is replacement of the thermistor itself, as the sensor is the most likely point of failure. Before replacement, inspecting the wiring harness and connectors for visible damage, corrosion, or disconnection is a worthwhile preliminary check that may resolve the issue without parts.

Source: manufacturer service documentation.

Common causes of 237

  1. 01

    Failed Thermistor

    Part replacement

    The thermistor itself has developed an internal open circuit, breaking continuity completely. This is the most common cause and is confirmed by testing the sensor with a multimeter and finding infinite resistance or no continuity.

  2. 02

    Broken or Damaged Wiring Harness

    Wiring / connection

    The wiring between the thermistor and the control board may have a broken wire, often caused by vibration, pinching, or physical stress over time. Visually inspect the harness for cuts, fraying, or loose connections.

  3. 03

    Corroded or Disconnected Connector

    Wiring / connection

    Moisture in the area around the thermistor connector can cause corrosion that breaks electrical continuity. Inspect the connector pins for green or white oxidation and ensure the connector is fully seated.

  4. 04

    Control Board Fault

    Part replacement

    In rare cases, the control board circuit responsible for reading the thermistor signal may be damaged, causing a false continuity error even with a good sensor and wiring. This is typically diagnosed after confirming the sensor and harness are intact.

See the test procedure for each cause

Frequently asked questions about 237

What does 237 mean on a Fisher & Paykel washer?
Error code 237 means the washer's electronics have detected a continuity problem in the temperature sensor circuit. This is the same underlying fault as codes 10 and 41 (Phase 6). The control board cannot get a valid signal from the thermistor, so the machine stops to avoid running a cycle without proper temperature control. The thermistor or its wiring circuit needs to be inspected and likely replaced.
Can I fix error code 237 myself?
A knowledgeable DIYer can start by inspecting the thermistor wiring harness and connectors for obvious damage or disconnection. If the wiring looks intact, testing the thermistor with a multimeter for continuity will confirm whether the sensor itself has failed. Replacing the thermistor is a relatively straightforward repair, but if the control board is involved, professional service is recommended.
Is it safe to keep using my washer when error 237 appears?
You should not continue running the washer while error 237 is active. Without a functioning temperature sensor, the machine cannot regulate water temperature correctly, which could result in improper washing or potential damage to fabrics. The washer will typically stop operation on its own when this fault is detected to prevent those outcomes.
Will resetting the washer clear error code 237?
A power reset may temporarily clear the error display, but the fault will return as soon as the machine attempts to read the thermistor and detects the same continuity problem. Because code 237 points to a hardware failure in the sensor circuit, a reset does not fix the underlying issue. The thermistor or related wiring must be repaired or replaced for the code to clear permanently.
How much does it cost to repair error code 237 on a Fisher & Paykel washer?
If only the thermistor needs replacement, parts typically cost in the range of $15 to $60 depending on availability, with labor adding $75 to $150 if a technician performs the repair. If the wiring harness or control board is also involved, total repair costs can rise to $150 to $400 or more. Getting a diagnostic assessment first helps clarify exactly which components need replacement before committing to a repair.

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