Just called out to a Bosch WAP28360GB washing machine drum sounded like it had a loose pully but on checking with the back off the motor is only moving round in short jerks causing the pully to ring like a bell.
Looks like a 3phase motor (very small) and an inverter driving it nothing loose on the wiring and the inverter board has no sign of physical damage has anyone had similar problems with this machine cant be sure if its the inverter or the motor causing the problem.
Thanks
Auldyn Electrics
Definitely the motor module. When it fails in this manner , the error code when accessed will point towards a tight drum or something jammed between tub and drum…..hence the way the drum jerks as it tries to spin.