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FISHER-PAYKEL F03

Fisher & Paykel Washing Machine Error Code F03: Temperature Sensor (Thermistor) Fault

Clear meaning, realistic next steps, and safe guidance without turning the page into a long repair manual.

What it means

The washer's temperature sensor (thermistor) has reported a reading outside the expected range. The washer cannot accurately monitor water temperature, which prevents heated wash cycles from completing safely.

Severity

Medium - some user checks may help, but repeated faults often need service.

Can you fix it yourself?

No - Professional Required

Most likely cause

Thermistor failure — the sensor's resistance has drifted out of range

Estimated time for safe first checks: Professional service required.

Step-by-Step DIY Fix Guide

  1. SAFETY: Unplug the washer before any inspection.
  2. Perform a hard reset: unplug for 5 minutes then restart.
  3. Try running a cold wash cycle — if it completes without F03, the fault is temperature-specific.
  4. If F03 returns on any cycle, the thermistor requires professional replacement.
  5. Contact Fisher & Paykel service.

If the warning comes back after restart

  • If airflow still seems weak after the basic checks, the fan path or a deeper obstruction becomes more likely.
  • If the warning returns immediately after a clean restart, the sensor or wiring path becomes more likely than a one-time glitch.
  • F03 persists after a power reset

What This Error Means

The F03 fault code on your Fisher & Paykel Washing Machine means: The washer's temperature sensor (thermistor) has reported a reading outside the expected range. The washer cannot accurately monitor water temperature, which prevents heated wash cycles from completing safely.

The most common cause is: thermistor failure — the sensor's resistance has drifted out of range.

This fault is not user-fixable and requires professional service. Call a technician if F03 persists after a reset, or appears on cold wash cycles.

Most Likely Cause by Symptom

The Fisher & Paykel washing machine may stop, pause, or refuse to complete the cycle normally.

Likely cause: Thermistor failure — the sensor's resistance has drifted out of range

Check first: SAFETY: Unplug the washer before any inspection.

The warning may return immediately because the appliance is detecting an internal fault.

Likely cause: Thermistor wiring disconnected or corroded

Check first: Perform a hard reset: unplug for 5 minutes then restart.

Common Causes

  • Thermistor failure — the sensor's resistance has drifted out of range
  • Thermistor wiring disconnected or corroded
  • Water leaking onto the thermistor connections

What Not to Do

  • Do not run heated cycles repeatedly when F03 is active — the machine cannot monitor temperature safely

Model and Display Variation Notes

Model-family notes

  • Fisher & Paykel washing machine display wording and code formats can vary by series.
  • If your model behaves differently, check the owner manual before trying any deeper maintenance step.

Display and panel differences

  • Panel wording can vary by series, so confirm the exact code pattern before buying parts.

Parts, Tools and Service Options

Service option

Fisher & Paykel service visit if the warning returns after the basic checks are complete.

Manual and model check

Check your exact model and manual before ordering any Fisher & Paykel washing machine parts.

Common parts

  • NTC thermistor (~$20–$50) if confirmed faulty (varies) - consult technician

This section stays service-first because the page points more strongly toward support or professional repair than a routine parts purchase.

When Not to Keep Troubleshooting

F03 persists after a power reset

  • F03 appears on cold wash cycles

How to Prevent It Recurring

  • Ensure the washer area is not subject to flooding or damp — moisture around the thermistor accelerates corrosion

Related Error Codes

Extra notes

  • This page is based on Fisher & Paykel support material and stays conservative where model-specific guidance may vary.
  • The goal is to help you identify safe first checks before you move into parts, service, or model-specific manual lookup.

Source and model notes

Last reviewed: 2026-04-09

Based on: Based on Fisher & Paykel support material and edited into consumer-safe guidance for the exact code family on this page.

View Fisher & Paykel North America Support

Model coverage note: Fisher & Paykel washing machine code meanings can vary by series, control panel, and model family, so use this page as a safe starting point rather than a replacement for the model-specific manual.

Important: FixThisError is an independent guide, not the manufacturer. Use your model-specific manual when the panel wording or behavior differs.

Always disconnect power before inspecting appliances. If unsure, contact a licensed appliance technician.