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ErrBase

How to Reset a Miele Dryer and Clear Fault Codes

Quick Answer

Clean the fluff filter (inside the door) and the fine filter (door base).

To reset a Miele dryer: press Start/Stop to cancel the program, unplug from the wall for 60 seconds, then plug back in and restart. This clears transient faults. F066 from a tripped thermal cutout will not reset this way - the thermal cutout must be physically replaced after cleaning the lint path. Always clean the fluff filter before any reset attempt on a heating fault.

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F066

How to Reset Your Miele Dryer

Miele dryers store fault codes in the control unit. Pressing Start/Stop cancels the active program. A full power-cycle reset (unplug 60 seconds) clears transient fault codes from volatile memory. Hardware faults (F066 from a tripped thermal cutout, F63 from a failed door lock) will return immediately after reset if the component has not been replaced.

Most Likely Causes

Based on aggregated repair data, here is the probability breakdown for this error code:

Transient heating fault cleared by power cycle40%
Program stuck after power outage36%
Post-repair code clear24%

Symptoms You May Notice

  • F-code displayed
  • Dryer stopped mid-cycle

Tools Required for Diagnosis

None

Diagnostic Checklist

Follow these steps in order. We start with the easiest external fixes before opening up the machine.

1

Clean filters and power-cycle reset

Clean the fluff filter (inside the door) and the fine filter (door base). Press Start/Stop to cancel the program. Unplug the dryer from the wall for 60 seconds. Plug back in. Start a new cycle. If F066 does not return, the filter clog was the cause and the thermal cutout is still functional.

Frequently Asked Questions

How do I reset my Miele dryer after F066?
Clean the fluff filter and fine filter first. Press Start/Stop to cancel the program, unplug for 60 seconds, and restart. If F066 returns immediately, the overtemperature thermal cutout has tripped and must be physically replaced. A reset cannot restore a tripped thermal cutout.
Does resetting a Miele dryer delete my settings?
No. A power-cycle reset clears the active fault flag and cycle state but does not change your programmed settings, temperature preferences, or drying level calibration.

Related Miele Dryer Error Codes

Code: F066Miele Dryer F066: Heating FaultCode: HUBMiele Dryer Error Codes: Full List

Same Fix Works on These Brands

Miele shares the same hardware platform with these brands. The diagnosis and repair steps are identical.

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Models Known to Experience RESET Errors

This repair applies to most Miele dryers with this error code. Common model numbers include:

T 7634, T 7744 C, T 8403, T 8403 C, TWF 620 WP, TWI 180 WP

Last verified for technical accuracy on March 14, 2026