Bosch WVT1260GB Drum Not Rotating

[yucca]

Re: Bosch WVT1260GB Drum Not Rotating

Thanks for the tip.

I’m happy to spend the cash If the motor is faulty. Like everybody else out there, I don’t want to throw good money after bad since a new machine is so much cheaper than the sum of its parts.

So, is there any other final test I can make to confirm that it is the motor and not anything else?

I’ve managed to take the motor off this time, so I could set the machine going and check the voltages at the 6 pins on the plug which connects to the motor. The trouble is I don’t know what to expect.

I know two pins will be for the brushes. And some pins will be for the field windings to generate the magnetic field … But what about the speed controller?

Does anyone know which is which? And what voltages I should be getting at each pin? I guess direction is controlled by another component higher up in the chain because I recall hearing clicks (relays?) whenever the direction of rotation changed.

Any insight would be gratefully appreciated!

Thanks

[iadom]

Re: Bosch WVT1260GB Drum Not Rotating

The test you have already done confirms the motor is faulty, if you have an OC condition between two of the contacts then the motor is faulty, 99{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d} certain the overload has blown. If the overload had blown then that means the rotor/comm is in poor condition.

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[yucca]

Re: Bosch WVT1260GB Drum Not Rotating

Ok, thanks.

In addition, my father-in-law has come across another machine of the same type and has taken resistance readings for the pins:

*) Pins 1&2: His:1.3 ohm, Mine:1.2 ohm
*) Pins 3&4: His:3.1 ohm, Mine:infinite
*) Pins 5&6: His:15 ohm, Mine:15.5 ohm

So that that’s conclusive. I was going to measure the voltage at the connector with the machine switched on during a spin cycle however my multimeter’s prongs were too large to fit into the slots and I didn’t want to damage the plastic plug by forcing them in.

One final thing, I tipped the machine on it’s left-hand-side to access the motor. I may be mistaken, but to me now, the drum seems to sit slightly higher than before.
It could be that normally there are clothes in the machine weighing it down. Does it sound like I’ve cream-crackered the suspension system (two springs on top and 2 support struts at the bottom)? Or am I just imagining this?

Thanks

[iadom]

Re: Bosch WVT1260GB Drum Not Rotating

Tipping it over carefully shouldn’t cause a problem, as long as the drum looks central it should be ok.

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