Dryer High Severity
F15 Miele Error Code

Overheating Protection Activated

The F15 error code means your Miele dryer's safety thermostat has detected an internal temperature that exceeds the safe operating limit. The machine immediately shuts down the heater and may stop the cycle.

~50%

DIY Fixable

$100-400

Typical Repair Cost

20 min – 2 hrs

Pro Repair Time

Quick Assessment

Answer to continue safely

Is it safe to keep using?

No. Overheating is a fire risk. Do not use the dryer until the cause of overheating is identified and resolved. Clean all airflow components first.

Can I reset the code?

Yes. Yes — but only after the machine has cooled and airflow has been cleaned. The thermal protection needs to reset naturally.

When to stop immediately?

Stop if you notice: Burning smell, Scorch marks on lint.

Symptoms You May Notice

Dryer shuts down mid-cycle

The machine stops abruptly during a heated cycle

Exterior is very hot

The machine body feels unusually hot

Burning smell possible

Overheated lint may produce a scorching smell

F15 after extended running

The code appears after the machine has been running and heat has accumulated

Possible Causes

1

Blocked Exhaust/Condenser

The #1 cause — hot air cannot escape, so internal temperature rises.

DIY Possible
2

Clogged Lint Filter

Lint buildup restricts airflow.

DIY Possible
3

Failed Cooling Fan (Heat Pump Models)

The fan that cools the heat pump has failed.

Requires Professional
4

Faulty Thermostat

The thermostat triggers at too low a temperature (false alarm).

Requires Professional
5

Heater Not Cycling Off

The heater control is not cycling off at the set temperature.

Requires Professional

Safe Checks You Can Do

These checks are safe for homeowners. No disassembly required. Do not remove panels or access internal components.
  1. 1

    Clean Lint Filter

    Remove and thoroughly clean the lint filter.

    This should be done before every cycle.

  2. 2

    Clean Exhaust/Condenser

    Clean the exhaust vent (vented models) or condenser unit (condenser/heat pump models).

    A clean airflow path is the best defense against overheating.

  3. 3

    Let Machine Cool

    Wait at least 30 minutes for the machine to cool completely before attempting to restart.

    The thermal protection needs time to reset.

  4. 4

    Power Reset After Cooling

    Turn off at mains for 10 minutes after the machine has cooled.

    Some thermal protectors auto-reset; others require power cycling.

  5. 5

    Test on Low Heat

    After cooling and cleaning, run a cycle on the lowest heat setting as a test.

    If it completes without F15, gradually try higher settings.

When to Call a Professional

Contact a qualified Miele technician if:

  • All airflow paths clean but F15 persists
  • Thermostat failed
  • Heater not cycling off
  • Heat pump cooling fan failed
  • Under warranty

Need Professional Help?

Find qualified Miele technicians in your area for proper diagnostics and repair.

Schedule Appointment

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F78 F72 F69 F66 F46 F40 F36 F34 F16 F14 F11 F09