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Bosch RepairDubai

Washing machine

F21: Motor speed fault

Worn motor brushes, tacho sensor or motor wiring.

A technician in red overalls and a red cap kneels beside a white washing machine in a grey bathroom, holding the door open and working at the seal with a screwdriver, with a toolbag on the floor beside him.

Likely causes

  1. 1

    Worn motor brushes

    Most likely

    Brushes wear out over time.

  2. 2

    Tacho sensor or wiring

    Common

    Speed feedback is lost.

Safe checks you can try first

Switch the appliance off at the wall and wait two minutes before checking filters or hoses. Never open the appliance housing or touch internal wiring. If water or burning smells are present, stop and call us.