Step-by-Step DIY Fix Guide
- SAFETY: Unplug the washer before any inspection.
- Perform a hard reset: unplug for 5 minutes then restart.
- Try running a cold wash cycle — if it completes without F03, the fault is temperature-specific.
- If F03 returns on any cycle, the thermistor requires professional replacement.
- 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.
What users usually notice before this code
Fisher & Paykel washing-machine warnings like this often appear after a fill problem, a drain slowdown, a badly balanced load, or a startup sequence that did not settle cleanly.
Common misdiagnoses
- Assuming the display code proves one exact failed part before the safe first checks are done.
- Blaming a pump or valve first when a blocked path, filter, hose, or household plumbing issue is still possible.
- Treating a sensor-related warning as a guaranteed board failure before checking the simpler model-family causes first.
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
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When not to keep pushing DIY troubleshooting
Use the code page for one careful first pass, then stop if the same warning returns or the appliance still cannot get back to normal operation.
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.