Bosch WAN28150GB not spinning
Our Bosch WAN28150GB is 2.5 years old and has stopped spinning. We suspect it might be the brushes that need replacing. It will drain and when I tested it with a light t-shirt it could spin, anything heavier is too much to handle and it just stops (and makes a slight click/beeping sound.)
Is it worth getting an engineer in or better purchasing a new one?
Anything else I can try first?
Solution Summary
AI-generated from this discussion
This thread was marked as solved. Here's a summary of the problem and the fix, generated from the discussion below.
Bosch WAN28150GB spins empty but not with laundry load
- The problem
- Bosch WAN28150GB washing machine, about 2.5 years old, stopped spinning properly. It drains, and it will spin with a light T-shirt or little/no load, but with heavier items it stops and gives a slight click/beeping sound. The original suggestion of worn brushes was ruled out after it was noted this motor is brushless.
- Likely cause
- Most strongly supported possibilities were a slack drive belt causing slip under load, a fault within the motor, or an electronics fault such as the capacitor/start circuit or PCB. The exact failed part was not confirmed.
- What fixed it
- Recommended checks were to inspect whether the drive belt is obviously slack and to check the motor plug and wiring connections. Beyond that, the discussion advised that there is little else a user can safely do, and that an engineer would typically diagnose by substitution, for example trying a different motor and then the PCB if needed. No confirmed repair was posted.
- Checks to try
- Drive belt for obvious slackness
- Motor plug and connections
- Parts or tools mentioned
- Drive belt
- Motor
- Capacitor/start circuit
- PCB
Safety: Further diagnosis should be carried out by a suitably qualified appliance engineer.
6 Answers
Make sure the drive belt isn’t slack as the motor could slip inside it when drum is loaded but turn drum ok when empty. It would need to be quite slack for the motor to slip though. It should be quite obvious if it’s too slack, and it isn’t common.
Other than that, if the motor runs ok without a load but not under load, it could be a fault inside the motor, which would need a new motor, or a fault in the electronics, maybe a capacitor or the PCB. Other than checking the motor plug and connections there’s nothing much you can do. This kind of fault usually doesn’t have a test for determining which and commonly an engineer would try a different motor and if that didn’t work try a new PCB.
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have just been told this motor is brushless so won't be that then
is it induction (brushless) motors that have the starter capacitor fitted to the machine (or on the motor control board) - could that be at fault and need changing on that particular machine Andy?
Yes Andy, that's what I meant when I said capacitor. I should have said startup capacitor. Not sure if they still use the big silver cylinder capacitors, or whether the startup is all achieved with components in the pcb.
The startup capacitor faulting used to stop the motor turning at all but thisnone turns without a load in the drum. I guess it's possible that it fails under load.
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ah right, yeah I always used to get mixed up what had the starter capacitor if it were the brush or brushless type motors - thought it were brushless.
It could be that possibly then - will be a big massive capacitor presumably even if it is incorporated on the motor board these days . The repairer would do good to de-energise the capacitor(s) on that board before handling - could get quite a jolt off those boards even with the 3 pin plug plugged out on the wall! - I have had some jolts before meself off washing machine motor control panels before even when unplugged ⚡
Aye, capacitors can hold a nasty charge. Some washing machines hold a very big hundreds of volts charge on the metal part of control modules for several minutes after being unplugged.
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