RachelBS

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  • in reply to: Bosch WAK28261GB/16 motor circuit error E21 #478643
    RachelBS
    Participant

    Thank you again for the responses.
    I have tried the multimeter on the brushes and yes, they connect to pin 3.
    I also checked each of them was in contact with the commutator as suggested and they are.

    in reply to: Bosch WAK28261GB/16 motor circuit error E21 #478640
    RachelBS
    Participant

    Thank you very much for your responses. I have borrowed a multimeter (digital with lots of various settings). There is a 7-pin connector to the motor so have tested across the pins on the simple circuit setting and on the lowest Ohms setting (200). Across pins 1 and 2 (or 6 and 7 depending on which way they go) there is a circuit and get a reading of around 240 so I guess this is the tachometer coil, pins 3 and 4 show no circuit/no reading, pins 5,6 and 7 show circuits in all combinations and readings of 6 to 13. I also tested across the ends of the two brushes and got a reading around 500 but don’t know if this is at all relevant.
    I did a quick search and seems that pins 3 and 4 likely serve the armature/brushes.
    I assume that the internal winding overload fuse is not something that can be replaced on its own? Therefore a new motor would be needed and probably time to give up?

    I hate being beaten by things but on the plus side my knowledge of the internal workings of washing machines has been significantly increased over the last 2 weeks.

    Thanks again.

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