M
f108
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Miele · Dryers
Heat pump system fault
Quick Answer
Error code F108 on your Miele Dryers means: Heat pump system fault. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
  1. Heat pump compressor has failed
  2. Refrigerant leak in the heat pump circuit
  3. Heat pump sensor malfunction
  4. Condenser or evaporator blockage
How to Fix It
1
Turn off the dryer and unplug from power.
2
Clean the lint filter and heat exchanger thoroughly.
3
If the error persists after cleaning, the heat pump system needs professional inspection.
4
Contact Miele service - heat pump repairs require specialized equipment.
Pro Tip
This issue typically requires professional diagnosis. Attempting this fix without proper training could cause further problems.
Parts You May Need
Heat pump compressor
Heat pump sensors
Refrigerant
Related Error Codes
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