How serious is the Whirlpool F15 error?
| ⚠ HIGH — Stop using immediately. This fault affects the heating system and can pose a risk of overheating or electrical damage if ignored. |
What does the Whirlpool F15 error code mean?
The F15 error indicates a fault with the heating relay circuit, usually located on the main control board (PCB).
The relay is responsible for switching the heating element on and off. If it becomes stuck, damaged, or fails electrically, the machine may:
- Fail to heat water at all, or
- Heat continuously (less common but more serious)
In some cases, the fault may also be triggered by issues in the heater circuit, not just the relay itself.
Typical symptoms:
- Burning smell (in severe PCB failure cases)
- Clothes not washing properly (cold wash)
- Cycle taking longer than normal
- Machine stopping mid-cycle
How to fix the Whirlpool F15 error code
- Unplug the machine and allow it to fully discharge
- Remove the top panel to access the control board
- Locate the main PCB – Usually housed in a plastic casing
- Inspect the PCB visually – Look for burn marks, melted areas, or damaged components paying close attention to the relay area.
- Check wiring and connectors – Ensure all plugs to the PCB and heater are secure. Look for signs of overheating or corrosion
- Test the heating element (if accessible) – A shorted or failing heater can damage the relay
- Test the relay (advanced) – Requires a multimeter and experience. Most users skip this step
- Replace the control board (PCB) if faulty – This is the most common and reliable fix
Frequently Asked Questions
Is F15 dangerous?
Yes — especially if the relay is stuck in the “on” position, which can lead to overheating.
Can I repair the relay instead of replacing the PCB?
Technically yes, but it requires component-level soldering skills. In most cases, replacing the PCB is faster and more reliable.
Why is my washer not heating water?
Most commonly due to a failed relay on the PCB, but could also be the heating element or wiring.
Is F15 expensive to fix?
Heater (if needed): £30–£70
PCB replacement: £80–£200
Parts you may need
| Part | Approx. UK Cost |
| Control board | £80–£200 |
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