ERROR CODE EXPLAINED
Miele Washer
Miele Washer F20 Error Code
What it means
The washer Thermostop/heating system did not reach the required temperature in time; a heating fault may be present.
Try this first
- Disconnect the washer/washer-dryer from power by unplugging it or switching off the breaker.
- Wait at least 2 minutes before reconnecting power.
- Switch the washer on and restart the program.
- If the fault continues, arrange Miele service.
Can I keep using it?Follow the Miele checks that match the condition described by the appliance; not every step applies to every model or cause.
Repair usually required?Use only the manufacturer-backed checks on this page. If Miele directs the issue to service or the listed checks do not resolve it, arrange professional service.
If the error keeps returning
Use the linked official Miele support article for the exact source guidance and model-specific details.
Official source
Troubleshooting information verified against manufacturer support documentation.
View manufacturer support page →Safety note:ApplianceSignal provides general troubleshooting information. Always follow the appliance manufacturer's safety instructions and disconnect power when required.