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My mother inlaws machine recently stipped spinning, so i firstly cleared the drain pump area, it still didn’t spins so then i replaced the bushes which worked as the olds ones where down to the last 5mm, it now spins.
Bu when i replaces the bushes they made a noise against the motor commutator (the bit the brushes touch that spins) so i changes them around to check it i had them the correct way round, but the noise was even louder to i put them back to the correct way round.
The motor when spun without bushes doesn’t make a noise.
do the bushes need settling in? do i need to clean, or smooth the commutator?
could thenoise be from eleswherethe new brushes do need time to bed in
make sure you have them the correct way up
i find some brushes only touch on the trailing edge so park a lot and it starts doing weird things like letting water in the machine in spurts during spin. if your does this tell meother than that i always advise customers to keep loads down and dont fill it full of towels plus set the spin speed to 800 for the first 10 washes then raising it by 200 revs for the next 10 washes and so on
Dave
Thanks
After the first time fitting the brushes making sure the sloped edge made full contact with the cummutator and it being noisey i removed the motor and re checked the brushes, even turned them round to make sure they were correct. the old ones had a slight curve so i assumed they would require bedding.
it seems to be filling fine but we have not done a full wash yet. i’ll keep and eye on it
thanksI had a similar issue in 2017 and you can see my post here. Basically what it boils down to is giving the commutator a very gentle clean with fine sandpaper so you can see the copper shine. Then use an air compressor to blow out the dust and carbon from within the motor – if you feel confident, draw a line down the entire side of the motor with a permanent marker, and very carefully take the end of the motor off to remove the shaft and stator to clean the thing properly.
Once you cleaned the motor with your chosen method, reinsert the brushes and check that the flattest edge of the brushes are running on the copper commutator – make sure the pointed edge isn’t on the commutator, as this damage it.
Run the machine with nothing it on the hottest cottons wash and ensure the spin speed is no higher than about 600rpm for now. The idea is to bed the brushes in very gently, but in a manner than doesn’t scorch the commutator or brushes. The long wash cycle should accomplish this, with some short intermittent spins during the rinses before the final spin.
If all is seems well, allow the machine time for the motor cool down before your next wash. I would put about quarter of a load in and set the spin speed to 800rpm or so. Do this for the next cycle, before gradually increasing the load size and spin speed – then the brushes should be fine for normal wash cycles.
I know the above seems a faff. But I wish somebody told me the above a few years ago. I was being led down the garden path with stories that my PCB was faulty, I should buy OEM brushes from Bosch, a new motor and even a new machine. In fact it just needed a little patience and understanding of how motor brushes are bedded in.
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