Hotpoint · Washing Machine · Sensor Fault

Hotpoint Washing Machine Error F03

Hotpoint washing machine error F03 usually indicates a temperature-sensing fault. ECL records this code as “Thermistor Fault”. A common cause listed on this page is A temperature-sensing or temperature-control fault that requires diagnosis., but the exact cause can vary by model and appliance generation. Keep to the external checks and safety guidance below; do not remove covers or test internal or live components, and arrange professional diagnosis if the code persists.

Quick answer: F03 is a temperature-sensing fault. Hotpoint associates it with the washing machine not heating as expected; it does not prove that a particular sensor or heater needs replacing.

In simple terms

Hotpoint washing machine code F03 usually means Thermistor Fault. Follow these four steps.

1Understand the code

See what the code usually means and why it may have appeared.

2Try safe checks

Try only the simple checks listed on this page. Do not take the appliance apart.

3Check if it is safe to use

Check the safety section before you keep using the appliance.

4Choose the next step

Use the next-step box to see whether to keep checking, find a part by model or get repair help.

What Hotpoint F03 means

Hotpoint lists F03 as a temperature-sensing fault on its washing machines. Affected machines may not heat the water during a wash programme. The code points to a temperature-control problem, but it does not identify a specific failed component or confirm the same repair for every model.

Repair help

Need help with F03?

This fault may need proper testing with tools. If you have followed the safety guidance above, ECL can pass the fault details to a checked repairer who covers your area.

Find an ECL Verified repairer

No obligation. Your contact details are only shared after you submit the repair request, and only with a suitable ECL Verified repairer where coverage is available.

Common causes

  • A temperature-sensing or temperature-control fault that requires diagnosis.
  • A model-specific electrical or heating-system issue that cannot be distinguished from the code alone.

Safe checks you can make

  1. Note the full F03 display, the programme selected and whether the wash appears unusually cold or stops early.
  2. Record the exact model and service number from the appliance label; consult its user manual for model-specific advice.
  3. If there is a burning smell, smoke, water near electrical parts or repeated electrical tripping, stop using the appliance and isolate it safely.
  4. Arrange qualified service for a persistent F03 fault. Do not remove panels or test internal electrical or heating components.

When to stop and call an engineer

Hotpoint recommends arranging an engineer for F03. Stop using the machine if the fault persists, heating is abnormal, or any electrical or leak warning signs appear. Do not repeatedly run programmes to test the heating system.

Your model may be different

Error-code meanings can vary by model, market and appliance generation. Confirm Hotpoint F03 against the instruction manual or support information for the exact model number before replacing parts or treating this page as a model-specific diagnosis.

Where this information comes from

Publisher: Error Code Lookup Editorial Team. This page is independent information written in our own words and reviewed with safety boundaries in mind.

Manufacturer information: Hotpoint UK washing-machine error-code guide (F03). Use the exact model number to verify model-specific wording and instructions.

Original archive review date: 2026-05-18. Manufacturer guidance checked for this correction: 2026-10-10. 2026-05-18

How Error Code Lookup researches and verifies pages · Report a correction or provide model-specific evidence

Frequently asked questions

What does F03 mean on a Hotpoint washing machine?

F03 is a temperature-sensing fault. Hotpoint says an affected washing machine may fail to heat during a programme.

What usually causes Hotpoint error F03?

The code indicates a temperature-sensing or temperature-control problem, but does not prove which component is faulty. A qualified engineer should diagnose the cause.

Can I safely fix F03 myself?

You can record the code and model number and check the manual. Do not open the machine or test internal heaters, sensors or wiring.

When should I call a professional for F03?

Hotpoint recommends an engineer for F03. Stop using the machine immediately if you notice smoke, burning smells, electrical tripping or water near electrical components.

Related Hotpoint washing machine codes

Browse all Hotpoint washing machine error codes · Browse all washing machine error codes · Troubleshooting guides