- Appliances
- Dryers
F1
Miele F1 on a tumble dryer: refrigerant temperature sensor
Risk level
Medium
Proceed carefully and stop if the check is unclear.
Urgency
Medium
Quick answer
On a Miele tumble dryer, F1 means the refrigerant temperature sensor is short-circuited. Miele says you cannot fix it yourself: switch the dryer off, unplug it and book a repair appointment.
Safety first
Stop and check this first
- Do not open the dryer: the heat pump has a sealed refrigerant circuit that only a certified technician may work on, and the appliance runs at mains voltage.
Safe checks you can perform
- Power off and details for service
- Using the dryer until the visit
- Sensor and wiring measurement
Leave these tasks to a qualified professional
- Do not attempt this professional task: Sensor and wiring measurement
- Do not attempt this professional task: Heat pump operating test
What a technician must be able to justify
Technician visit
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Sensor and wiring measurement
What they doWith the power off, the technician uses a multimeter on the refrigerant temperature sensor and its wiring to the electronics.
They must show youmeasured values against specification and a photo of the connector.
In writingthe faulty section, any replaced part with its reference and the reason.
Heat pump operating test
What they doAfter the repair, the technician runs a programme and checks the dryer dries and F1 does not return.
They must show youa full programme with no code.
In writingthe programme tested, the result and the date; confirmation the refrigerant circuit was not opened or, if it was, who did it and with what certification.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Power off and details for service
- Who:
- you, no tools.
- How:
- switch the dryer off, unplug it and note F1 and the model from the data plate.
- Result that matters:
- having the details to book the visit.
- If F1 came with odd noises, a smell or water under the dryer:
- tell the service when booking.
- If nothing else happened:
- book the visit with the code and model.
- Evidence to keep:
- photos of the display and the data plate.
Evidence: Miele Great Britain tumble dryer fault F1
Using the dryer until the visit
- Who:
- you.
- How:
- do not keep running programmes to see whether F1 clears; Miele says it is a technical fault you cannot remedy.
- Result that matters:
- not forcing the appliance before diagnosis.
- If F1 clears after a restart:
- note it anyway; it does not rule out a sensor fault.
- If it keeps showing:
- keep the dryer unplugged until the visit.
- Evidence to keep:
- a note of dates and how often it appeared.
Evidence: Miele Great Britain tumble dryer fault F1
Sensor and wiring measurement
- Who:
- a Miele service technician.
- How:
- with the dryer disconnected, they measure the refrigerant temperature sensor and its wiring to the electronics.
- Result that matters:
- whether the short is in the sensor, the cable or the electronics.
- If the sensor reads out of specification:
- it confirms replacing it.
- If the sensor is fine and the cable is not:
- the repair is the wiring, not the sensor.
- Evidence to keep:
- measured values against the Miele specification.
The heat pump holds refrigerant and the dryer runs at mains voltage. Only the technician opens the appliance; the refrigerant circuit is not handled at home.
Evidence: Miele Great Britain tumble dryer fault F1
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Appliances
- Brand
- Miele
- Product type
- Dryers
Known code variants
- anomalía F1 secadora Miele
- Bosch cooktop F1 F6 work surface
- Bosch F1
- Bosch F6
- Bosch hob F6 overheated
- Bosch induction cooktop F1 error
- cocina LG F1 sonda
- DishDrawer F1
- DishDrawer flood fault
- error F1 DishDrawer
- error F1 placa inducción Bosch
- error F6 placa Bosch
- F 1
- F6
- Fisher & Paykel DishDrawer F1
- Fisher Paykel F1
- Gree F1
- Ideal boiler F1
- Ideal boiler F1 low pressure
- Ideal F01
- Ideal F1
- Ideal Logic F1
- lavavajillas Fisher & Paykel F1
- LG F-1 horno
- LG F1 horno
- LG F2 horno termistor
- LG oven F-1
- LG oven F2 thermistor
- LG range F1
- LG range F1 sensor
- Miele dryer F1
- Miele F1 fault tumble dryer
- Miele F1 secadora
- Miele heat pump dryer F1
- Neff F1 placa
- Neff F1 zona sobrecalentada
- Neff F1 zone overheated
- Neff F6 placa
- Neff hob F1
- Neff hob F1 F6
- Neff hob F6
- placa Bosch F1 proteger encimera
- placa Neff F1 F6
- secadora Miele F1 bomba de calor
What it means
Miele defines F1 as the refrigerant temperature sensor short-circuited. That sensor tells the electronics the temperature of the refrigerant circuit in the heat pump that dries the laundry. A short can be in the sensor itself, in its wiring or in its connection to the electronics. The code does not separate these and does not point to a leak or a compressor fault; Miele treats it as a technical fault for service.
Warnings and stop conditions
- Higheditorial warning
Do not open the dryer: the heat pump has a sealed refrigerant circuit that only a certified technician may work on, and the appliance runs at mains voltage.
Evidence: Miele Great Britain tumble dryer fault F1
Symptoms and causes
Probable causes · in order
- Refrigerant temperature sensorPossible
Only confirmed by measuring the sensor with the dryer open and powered off and comparing with the Miele specification.
Evidence: Miele Great Britain tumble dryer fault F1
- Sensor wiring or connectorPossible
A bare wire or damaged connector gives the same short; the technician sees it when checking the run to the electronics.
Evidence: Miele Great Britain tumble dryer fault F1
- Electronics inputLess common
If sensor and wiring measure correctly, the technician checks the electronics input that reads the sensor.
Evidence: Miele Great Britain tumble dryer fault F1
Virtual technician
Does F1 still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
Miele Great Britain tumble dryer fault F1
Miele · official_doc
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