Dryer High Severity
F72 Miele Error Code

Heat Pump Compressor Fault

The F72 error code means the heat pump compressor in your Miele dryer is not operating correctly. The control board has detected that the compressor is not starting, running at the wrong speed, or drawing abnormal current.

~15%

DIY Fixable

$350-700

Typical Repair Cost

2-4 hrs

Pro Repair Time

Quick Assessment

Answer to continue safely

Is it safe to keep using?

No. Without the heat pump compressor, the dryer cannot generate heat. Continued use wastes electricity without drying clothes.

Can I reset the code?

Yes. Yes — if the compressor overheated due to blocked airflow, cleaning and resetting may restore it. If the compressor motor has failed, F72 will return.

When to stop immediately?

Stop if you notice: Compressor makes no sound, F72 returns after cleaning and reset.

Symptoms You May Notice

No heat generated

The heat pump cannot produce hot air without the compressor

Clothes come out damp

Without the heat pump, drying is impossible

Compressor does not start

No characteristic hum from the compressor

F72 at cycle start

Appears when the compressor should activate

Possible Causes

1

Compressor Motor Failure

The sealed compressor motor has failed.

Requires Professional
2

Compressor Start Circuit Fault

The start relay or capacitor has failed.

Requires Professional
3

Refrigerant Leak

The sealed refrigerant circuit has lost charge.

Requires Professional
4

Blocked Condenser/Evaporator

Severe lint buildup prevents proper heat exchange, causing the compressor to overload.

DIY Possible
5

Control Board Fault

The compressor controller has failed.

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 the Condenser

    Remove and thoroughly clean the heat exchanger (condenser) unit. Heavy lint coating can cause compressor overload.

    Rinse under running water and let dry completely.

  2. 2

    Clean Lint Filter

    Ensure the lint filter is completely clean.

    A clean filter reduces strain on the heat pump.

  3. 3

    Power Reset

    Turn off at mains for 15 minutes. The compressor thermal protection may need to reset.

    15 minutes gives the compressor time to equalize pressure.

  4. 4

    Listen for Compressor

    Start a cycle and listen for the compressor starting. A healthy compressor makes a low humming sound.

    If you hear clicking but no hum, the start circuit may have failed.

  5. 5

    Check Room Temperature

    Heat pumps work less efficiently in very cold environments. If the dryer is in a cold garage, ambient temperature may be too low.

    Minimum operating temperature is typically 10°C.

When to Call a Professional

Contact a qualified Miele technician if:

  • Compressor motor failed
  • Start circuit fault
  • Refrigerant leak
  • Controller failed
  • Under warranty — heat pump should be covered

Need Professional Help?

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

Schedule Appointment

More Dryer Error Codes

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F78 F69 F66 F46 F40 F36 F34 F16 F15 F14 F11 F09