Beko WMB81241LB Drum not turning

[xrblue]

Hi.. my first post

My Beko washing machine has developed a fault, when I put it on a cotton wash it fills with water to nearly half a drum then does nothing for a minute or so then it will pump out a small amount of water then it will do the same again over and over. When I put it on a rinse spin and drain cycle it does the same.  When I end the programme the machine pumps out all the water no problem.  I changed the carbon brushes on the motor but still no luck so I pulled the pcb out to check for any burnt out components, there were a number of areas showing signs of being burnt but  cannot tell which part actually burnt out if at all.  Please see the attached photo.

 

Many thanks

Wayne

[Whitegoodshelp (Andy)]

Hello there. It sounds like it is overfilling. That's usually a fault on the pressure system. If the washing machine detects that it is overfilling these days it will commonly abort the wash cycle and start to pump the water away. However I would normally expect it to pump it in one continuous goal rather than a bit at a time. Obviously a strange fault on the PCB could cause bizarre behaviour but faults are rarely visible on PCBs. Is the black surrounding the components actual burning? Or is it just like dust/soot? Can it be brushed away with a clean paintbrush? Several components inside PCBs get very hot and attract a lot of black dust which many people think is a sign of burning. 

[xrblue]

Hi Andy, thanks for the fast reply.  The black dusted away and there's no sign of any burning. 

[xrblue]

I blew down the pressure pipe to clear any possible blockages

I removed and checked the motor resistances across the brushes, taco, and windings all ok.  There were two blue wires either end of the motor connector not sure what they are for.

I tried changing the pressure switch.

No burns on the DC module.

 

[Whitegoodshelp (Andy)]

When you say that it fills up with water, then pumps a little bit out over and over again, does it keep topping up with water? Or does it just keep pumping the water out in small bursts until all of the water has gone out?

[xrblue]

It just kept pumping out in small bursts.  All fixed at the moment with new DC Module.  

Thanks

[Whitegoodshelp (Andy)]

That's good to hear. Thanks for the update, it's very helpful.