NTC Temperature Sensor Short Circuit
The F02 error code means the NTC temperature sensor has a short circuit — its resistance is much lower than expected, indicating the sensor wires are touching or the sensor element has failed.
~10%
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. A short-circuited sensor means the board cannot monitor temperature. Running without temperature control is a fire risk.
Can I reset the code?
Yes. Yes, but a true short circuit will return immediately. Only moisture-related shorts clear with time.
When to stop immediately?
Stop if you notice: F02 appears every time, Burning smell.
Symptoms You May Notice
Dryer shuts down immediately
The board detects the short and stops heating as a safety measure
No heat produced
The heater is disabled to prevent overheating
F02 appears at startup
The board detects the short during its initial sensor check
May alternate with F01
An intermittent short may show as F01 or F02
Possible Causes
Shorted NTC Sensor
The sensor element has internally shorted.
Requires ProfessionalPinched Sensor Wiring
Wires are pressed together or against metal, creating a short.
Requires ProfessionalMoisture on Sensor Connector
Condensation has reached the connector pins.
Requires ProfessionalDamaged Wire Insulation
Heat has degraded the wire insulation, exposing copper.
Requires ProfessionalControl Board Fault
The board's sensor input circuit has failed.
Requires ProfessionalSafe Checks You Can Do
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1
Power Reset
Turn off at mains for 10 minutes.
If moisture was the cause, the drying time may resolve it.
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2
Clean Lint From All Areas
Remove and clean lint filter, check around the sensor area for lint buildup.
Lint can hold moisture against connectors.
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3
Run After Cooling
If the dryer has been running, let it cool completely, then try again.
Heat can cause intermittent shorts in damaged wiring.
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4
Check for Moisture
On condenser dryers, check the condensate container. An overfull container can cause excess moisture in the machine.
Empty the container before every cycle.
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5
Note Code Pattern
Does F02 appear every time, or intermittently? Constant = failed sensor. Intermittent = wiring issue.
Log occurrences for a technician.
When to Call a Professional
Contact a qualified Miele technician if:
- Sensor reads near-zero resistance
- Wiring shows damage
- F02 + F01 alternating
- Under warranty
Need Professional Help?
Find qualified Miele technicians in your area for proper diagnostics and repair.
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