Miele Dryer F1 Error Code: Causes and Fixes
Quick answer: Control relay fault
What you’ll notice
Dryer stops and will not restart; control board has flagged a relay fault.
Miele
Dryer
Code F1
medium severity
Miele models: Miele heat-pump and condenser dryers do not vent externally; condensate drains to a collection tank or a direct-drain connection. The door-opening lint filter is the primary filter, but there is a secondary condenser fluff filter in the lower plinth that must be cleaned monthly. A full condensate tank will pause the cycle without an explicit error.
Common causes
- Power surge damaged a control relay
- Loose connector on the relay board
- Control board failure
Step-by-step fix
- Unplug for 5 minutes and retry.
- If recurring, reseat harness connectors on the control board.
- Inspect the board for burn marks.
Tools you may need
Screwdriver set
Prevention
- Use a surge protector on the dryer outlet.
When to stop DIY
Replace the control board if the fault persists and harness connections are secure.
FAQ
What does F1 mean on Miele dryer?
F1 usually indicates: Control relay fault.
Can I keep using the appliance with F1?
Use caution. Severity is medium. Replace the control board if the fault persists and harness connections are secure.
How long does this fix usually take?
Typical first-pass troubleshooting takes 5 minutes (reset); 30+ minutes (board inspection).