Miele Tumble Dryer Fault Code F55 Meaning and Possible Fixes
Miele Tumble Dryer Fault Code F55
If your Miele tumble dryer displays fault code F55, the appliance has detected that the laundry is still not dry after the maximum drying time of 180 minutes. This applies specifically to residual moisture drying programmes and there are checks you can carry out before calling an engineer.
View all Miele tumble dryer fault codes
What the F55 Fault Code Means
The F55 fault code indicates that the maximum drying time of 180 minutes has been reached on a residual moisture drying programme without the laundry reaching the required level of dryness. Miele advises checking the load size and filter condition as these are the most common causes.
Common Reasons This Fault Appears
Overloaded drum
Exceeding the maximum load size for the selected programme is the most common cause. An overloaded drum prevents hot air from circulating freely, significantly increasing drying time beyond the 180-minute limit.
Blocked fluff filters
A blocked door filter or plinth filter restricts airflow and dramatically reduces drying efficiency.
Blocked heat exchanger
On heat pump models, a blocked heat exchanger reduces drying performance and can cause cycles to exceed the maximum time limit.
Very damp or heavy laundry
Items that retain significant moisture from the wash cycle will take considerably longer to dry, potentially exceeding the programme limit.
Faulty moisture sensor
If the moisture sensor bars inside the drum are coated with fabric softener residue or have failed, the machine may incorrectly detect laundry as still damp even when it is dry.
Safe Checks You Can Try
Check the load size
Miele advises not exceeding the maximum load size for the selected programme. Remove some items if the drum is overloaded and restart the cycle.
Clean the fluff filters
Remove and thoroughly clean both the door fluff filter and the plinth filter. These should be cleaned after every drying cycle without exception.
Clean the heat exchanger
On heat pump models, remove and rinse the heat exchanger carefully under running water to remove any lint or debris that may be reducing airflow.
Clean the moisture sensor bars
Locate the moisture sensor bars inside the drum — usually two metal strips near the door opening — and wipe them gently with a cloth dampened with a little white vinegar or rubbing alcohol to remove any fabric softener residue.
Restart the tumble dryer
Switch the machine off and back on again after addressing the above checks, then restart the programme.
If You Need Spare Parts
If you are confident carrying out the repair yourself, compatible Miele tumble dryer parts are available on Amazon with next day delivery.
Always check your model number before ordering to ensure compatibility.
When To Contact A Professional
If the F55 fault persists after reducing the load, cleaning the filters and sensor bars, there may be an underlying fault with the heating or sensor system that requires an engineer to investigate.
Internal components should only be inspected or repaired by trained professionals.
Related Miele Tumble Dryer Fault Codes
You may also encounter related issues indicated by Miele Tumble Dryer Fault Code F50 and Miele Tumble Dryer Fault Code F66.
Fault codes may vary slightly between different Miele tumble dryer models, so always consult the manufacturer documentation for your specific appliance.
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