What does the Miele F20 error code mean?
The machine is unable to heat water correctly. This affects wash performance and hygiene.
How to fix the Miele F20 error code
- Run a cold wash test
- Test heating element with multimeter (~20–30Ω)
- Check NTC sensor (~20kΩ at room temp)
- Inspect wiring
💡 Pro tip: If clothes come out cold, the heater is almost certainly faulty.
Frequently Asked Questions
Why is my Miele washing machine not heating water?
A faulty heating element or temperature sensor is the most common cause.
Can I still wash clothes with F20 error?
Yes, but only on cold cycles — hot washes won’t work.
Is F20 expensive to fix?
Usually moderate — heating elements are relatively affordable compared to control boards.
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