White Knight dryer CL787 problem

[LSG5]

Hello,

We have a White Knight automatic condenser dryer, model CL787. When we first bought it, it devloped a fault: when you pressed the start button it would turn the drum once and then switch off. It was under warranty and an engineer came out and told us because it is automatic, it uses brushes to measure the resistance of the drum, to measure how damp the clothes inside are. He said these brushes got dirty and he showed us how to clean them with a wire brush, in case it ever happened again. Luckily it has not happened.

Until now. We have this problem where the dryer switches off too early, meaning the clothes are still wet and we have to press the button and run it a second time.

Could this be the brushes? I would have thought that if it was the dryer would not run for so long before switching off? The filter and the condenser are clean, so it cannot be those.

Is there anything we can do to fix or diagnose it before calling someone out – you guessed it – it is no longer under warranty. We are not afraid to take the back off with your help.

Thanks.

[whitevanman]

Re: White Knight dryer CL787 problem

possibly the where this brush contact the drum is dirty, however in general if it is present and the contact area is clean, it may be more severe.

power off before investigating

however if you want an decent engineers post your postcode and am sur a local trades person may be able give you an estimate etc

try this link
http://www.ukwhitegoods.co.uk/modules.p … whitegoods

Hope this helps

wvm

[LSG5]

Re: White Knight dryer CL787 problem

whitevanman wrote:possibly the where this brush contact the drum is dirty, however in general if it is present and the contact area is clean, it may be more severe.

power off before investigating

Hello again. Looking at my post, I don’t think I made a couple of things quite clear: when we had a problem before, the drum turned one revolution and then switched off. The problem we have now is that the drum turns for several minutes before switching off, so it doesn’t seem quite the same problem as before.

When we had the first problem, the engineer showed us the brushes and said to clean them with a wire brush. But that was six years ago and now I’ve opened the top I can’t quite remember. There is a brush on the top of the drum, but are there any others? If so, where and how do I get to them? It looks as if it’s not so easy to remove any other panels?

I thought he flicked the brush off, but it seemed screwed in. Do I clean the brush and if so, how do I remove it, or do I clean the strip it makes contact with instead? The strip does have a darker ring where the brush has made contact with it.

But now for the main part: the brush is missing! There is a spring going down towards the drum, but it doesn’t qite touch the strip. I’m guessing this is the problem? Is there supposed to be a bit of graphite between the spring and the drum?

If so, is there a part number I can order. I presume that because the brush is not making contact the sensor can not tell when to switch of the machine. What puzzles me is why it runs so long rather than switch off immediately? Does it perhaps run on a timer before it measures fromthe sensor?

Thanks.

[whitevanman]

Re: White Knight dryer CL787 problem

If the brush is not there is wont work correctly

The brush required is not available/listed on shop@

however if you click the link below they may be able to source & supply part for you

http://shop.ukwhitegoods.co.uk/contact_us.php

hope this helps

Wvm

[LSG5]

Re: White Knight dryer CL787 problem

whitevanman wrote: if you click the link below they may be able to source & supply part for you

http://shop.ukwhitegoods.co.uk/contact_us.php

hope this helps

Wvm

Thanks. I will give it a try.

[LSG5]

Re: White Knight dryer CL787 problem

whitevanman wrote:If the brush is not there is wont work correctly
Wvm

Hello,

I have fitted the brush and the drier switches off correctly. The only problem is that it now squeaks when the drum rotates. I presume this is the brush rubbing? Will this stop once the brush beds in? If so, how long will that take? Is there anything I can do to stop the noise?

Thanks again.

[Author]

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