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Bosch Classixx not filling with water

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by DanR » Wed Jan 30, 2008 9:44 am

Hi all,

Firstly can I say, great forum!

Secondly I have come to work without the model number but will update the thread if necessary as soon as I get home! :oops:

A few days ago my bosch classixx dishwasher stopped filling with water (noise, no filling and when you open the door a whooshing noise as if a vacuum has been created). Firstly checked water supply, hoses and filter all fine. With a little browsing on the web I came to the conclusion it must be either the the water inlet valve or float mechanism.

Alas it is neither. The float mechanism works fine (currently in the lower position as there is no water in it) I have also checked the 3 prong micro switch with a multimeter which is also working fine (continuity across 1 and 3 when open and 1 and 2 when closed). Next to the little float chamber there is also a circular disc flat against the machine (air pressure sensor?) also with a micro switch which is working perfectly.

I have had the water inlet valve off and this is also working fine (using a multimeter showing some resistance) But to be on the safe side, as I believe they can fail mechanically, I replaced it with a new one on the off chance.

I have also checked the voltage across the terminals which supply power to the inlet valve which I presumed should be constant, when trying to fill, which it is not, it fluctuates up and down and only a few millivolts.

I suppose my question is can it be anything else or is it likely to be the PCB?

Many thanks.
Dan
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by gegsy » Wed Jan 30, 2008 6:00 pm

I would look at the usual suspect, the transfer tube which runs from the metering unit on lhs, to the sump. Its a clear rigid ribbed pipe app 12". It is O ringed in both ends. Remove it and clean it thoroughly.

Power off before attempting this :plug:

Greg
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by DanR » Thu Jan 31, 2008 9:07 am

Cheers for this, unfortunately I found the fault last night. Frazzled PCB. Less than 4 years old and only had light use, is this about par for the course with cheapo machines?

Wont be buying another cheapie Bosch thats for sure:) Lots of great advice on this forum, will be taking some of it!

Thanks again
Dan
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