Miele Dryer Clean out airways light — What It Means & How to Fix It
Also shown as Clean out airways on some models.
The 'Clean out airways' light is the dryer's polite nudge that the lint filters or the plinth filter in front of the heat exchanger need a proper clean.
What this code means
The 'Clean out airways' indicator isn't an alarm — it's maintenance. Miele's page explains it lights because the lint filters are soiled, and on heat-pump models it also flags the plinth filter in front of the heat exchanger. The light goes out the way it comes on: open and close the door with the machine switched on after cleaning every filter. Leave it too long and the dryer's airflow chokes — at which point the machine graduates you to a full F66 fault.
Documented by Miele USA for tumble dryers as the 'Clean out airways' indicator light; it shares its causes with F66, and Miele prints the same cleaning procedure for both.
Most likely causes
| Cause | How likely | DIY-fixable? |
|---|---|---|
| Lint filters overdue for cleaning | Very common | Yes — clean after each program |
| Plinth filter in front of the heat exchanger soiled | Common | Yes — clean and dry thoroughly |
| Plinth filter damaged or worn | Less common | Yes — replace it |
What you can try yourself
- Switch the dryer off and unplug it before cleaning.
- Clean both lint filters under running water and wipe or vacuum the airflow openings.
- On heat-pump models, open the access panel and pull out the plinth filter, rinse it, and dry it completely before refitting.
- Refit everything, plug in, open and close the door with the dryer switched on — Miele says this makes the light go out.
- If the light returns every cycle, replace a torn or deformed plinth filter rather than just cleaning it.
When to call a technician
- The light returns immediately after a full filter clean.
- The dryer interrupts a program with a fault message after cleaning.
- The dryer is barely drying — airflow is badly choked.
Typical professional repair cost: Free — it's a maintenance reminder; a replacement plinth filter is roughly $20–40.
Frequently asked questions
Does the light stay on if I ignore it?
It keeps nagging, and then the dryer upgrades the problem to an F66 breakdown with a program interruption. Ten minutes of filter cleaning now beats a technician visit later.
Why must the plinth filter be bone-dry before refitting?
Miele warns that a wet toe-kick/plinth filter can interrupt the next program with a fault message — damp blocks the airflow it's there to protect. Squeeze the water out and air-dry it.
Sources checked
Error meanings can vary by model. This guide was checked against the documentation above; use the manual for the model number on your own appliance when it differs.
Related Miele codes
- Miele Dryer F3 F3 on a Miele tumble dryer means the drying-air temperature sensor is short-circuited — a technical fault Miele says can't be fixed at home.
- Miele Dryer F36 F36 means Miele can't see proof the door is shut — the door contact (reed switch) is faulty, a technical fault for a technician.
- Miele Dryer F39 F39 is the dryer's electronic-fault flag — Miele's page just says 'there is an electronic fault' and that it can't be remedied at home.
- Miele Dryer F66 F66 is the dryer saying its airflow is choked — and Miele's own page says the cause is usually the lint filters or the plinth filter needing a proper clean.
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