Dryer Medium Severity
F01 Miele Error Code

NTC Temperature Sensor Fault

The F01 error code means the NTC temperature sensor in your Miele dryer is sending readings outside the expected range. The control board cannot verify the drum temperature, so it stops the heating process.

~25%

DIY Fixable

$150-350

Typical Repair Cost

45 min – 1.5 hrs

Pro Repair Time

Quick Assessment

Answer to continue safely

Is it safe to keep using?

No. Without temperature monitoring, the dryer cannot control heating safely. Do not use until F01 is resolved.

Can I reset the code?

Yes. Yes. Turn off for 10 minutes. If caused by a lint-covered sensor, cleaning may resolve it.

When to stop immediately?

Stop if you notice: F01 returns after cleaning and reset, No heat at all.

Symptoms You May Notice

Dryer does not heat

The drum spins but no warm air is produced

Clothes come out damp

Without heat, items do not dry

Cycle runs but never finishes

The machine waits for a temperature it cannot detect

F01 appears mid-cycle

Triggers during the heating phase

Possible Causes

1

Failed NTC Sensor

The thermistor has drifted or developed an open/short circuit.

Requires Professional
2

Loose Sensor Connector

Vibration has loosened the wiring plug.

Requires Professional
3

Damaged Wiring

Heat or abrasion damaged the sensor wires.

Requires Professional
4

Lint Coating on Sensor

Heavy lint buildup insulates the sensor.

DIY Possible
5

Control Board Input Fault

The sensor input circuit on the PCB 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 Lint Filter

    Remove and clean the lint filter thoroughly. Check the filter housing for lint buildup that may affect nearby sensors.

    The lint filter should be cleaned before every cycle.

  2. 2

    Power Reset

    Turn off at mains for 10 minutes.

    A longer reset helps sensor circuits recalibrate.

  3. 3

    Clean the Condenser (Heat Pump Models)

    If your dryer has a condenser unit, remove and rinse it. Lint coating on the condenser can affect temperature readings.

    Rinse under running water until clear.

  4. 4

    Run a Short Program

    After reset, run a short timed dry. Check if warm air comes out.

    If heat returns, monitor for recurrence.

  5. 5

    Check Exhaust (Vented Models)

    Ensure the exhaust vent is not blocked. Restricted airflow can cause abnormal temperature readings.

    Disconnect and check the full vent length.

When to Call a Professional

Contact a qualified Miele technician if:

  • Sensor reads open or short circuit
  • F01 persists after cleaning
  • Wiring visibly damaged
  • Under warranty

Need Professional Help?

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

Schedule Appointment

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