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M
f66
Easy Fix
Miele · Dryers
Ventilation/airflow problem
Quick Answer
Error code F66 on your Miele Dryers means: Ventilation/airflow problem. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
PTD908TCD450WPTCE520WPTCE630WPTCJ690WPTWB120WPTWD660WPTWF760WPTWI180WPTWR860WPTXI680WPTXR860WP
Likely Causes
  1. Dryer ventilation grille is blocked by objects
  2. Lint filter is clogged restricting airflow
  3. Heat exchanger is blocked with lint buildup
  4. Room ventilation is inadequate (enclosed space)
How to Fix It
1
Remove any objects blocking the dryer's ventilation grille.
2
Remove and clean the lint filter under running water.
3
Clean the heat exchanger panel if accessible.
4
Ensure the laundry room has adequate ventilation - open a door or window.
Pro Tip
This is a common issue that most users can resolve without specialized tools. Try the first step before moving on to more complex solutions.
Related Error Codes
F1F2F3F4F30
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