F22
Miele Washing Machine
Severity: ModerateWhat Does This Error Mean?
F22 means the NTC temperature sensor has a fault or has failed completely. The machine cannot verify water temperature, so it stops as a safety measure.
Affected Models
- Miele W1
- Miele WDB020
- Miele WDB030
- Miele WCI320
- Miele WCI860
- Miele WDD030
Common Causes
- NTC sensor failed (open or short circuit)
- Wiring between sensor and control board damaged
- Water ingress on the sensor connector
- Control board fault (rare)
How to Fix It
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Reset the machine and try once more.
Turn off at the mains for 5 minutes. A temporary sensor glitch will clear with a full power reset.
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Check the NTC sensor wiring connector.
The sensor sits near the heating element at the bottom of the drum. Check for loose or corroded connectors — an engineer will do this.
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Test the NTC sensor resistance.
At 20°C, a healthy NTC reads approx. 1300–1500 Ohms. A dead NTC reads 0 Ohms (short) or OL/infinity (open circuit).
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Replace the NTC sensor if faulty.
This is a relatively inexpensive repair (the part costs around £10–20). Labour from a Miele engineer is the main cost.
Frequently Asked Questions
Is F22 the same as F21?
They are related but different. F21 is a general heating system fault. F22 specifically points to the NTC temperature sensor. Both affect the heating circuit, but F22 narrows down the cause.