Miele Intermittent Power Loss / Thermal Trip

Unit shuts off randomly during use without error code

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Overheating motor triggering thermal cut-out, Loose mains connection inside unit, Faulty power switch, Failing motor winding

Safety: Unplug before internal inspection.

Check ventilation: Ensure all vents are clear and filters are clean to prevent overheating.
Allow cool-down: If the unit restarts after cooling, the thermal cut-out is operating. Reduce load by clearing blockages and using shorter sessions.
Inspect internal connections: Check the power switch, cord entry, and PCB terminals for loose or burnt connections. Tighten or replace as needed.
If shutdowns become frequent: The motor or thermal protector may be failing and should be replaced.

Medium 3/5

Thermal Cut-out / Power Switch

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