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Hi, Ive been trying to repair bosch SGS45EO86B/56 dishwaser, it just fills until the flood prevention switch comes on, and pumps for a few secs, and fills again etc, there is no p/switch as such, I have reset the timer, there are no blockages! and no leaks, Im sure it must be a simple fault, many thanks..Kencomet…
Re: bosch SGS45EO86B. dishwasher
This an SGS45E08GB/56……
It does have a pressure switch (remove left hand side panel to view). The chamber can get seriously clagged with food detritus, as can the hose leading from it to the sump. Additionally, it has the infamous “impellor jug” – a flow meter – which causes problems. It sends signals directly to the computer board to tell it how fast the water is flowing in.
Strip and clean the pressure switch and hose as a starting point. If things don’t improve, the flow meter is the next target. P/no 424099 if you wish to replace it – spares@ukwhitegoods.co.uk will get you one promptly.
Stay safe, power off for anything other than observation.
Penguin45.
Re: bosch SGS45EO86B. dishwasher
Hi thanks for info,taken side panel off, no p/switch, only one switch which is the flood prevention switch, the p/ swiotch as in earlier models, ie with two switches is not there,can I bridge out out flow pcb ,to check if ok! it does appear that someone has taken the p/switch off, although there are no spare connecting leads showing, thanks again.. Kencomet
Re: bosch SGS45EO86B. dishwasher
Hmm, correct, no pressure system at all….. Impellor jug it is then. Bridging it would be pointless, as it is a reed switch and magnet set up. The computer counts the pulses generated to work out the flow. And, it’s cheap. Possible that the pcb has lost its marbles, but quite a price.
Penguin45.
Re: bosch SGS45EO86B. dishwasher
Hi, many thanks, for info, part on order,£12.98. (jug valve) . as a newbie on this site Im very impressed, so a big thank you to Penguin 45 once again. Kencomet…
Re: bosch SGS45EO86B. dishwasher
Hi Guys, have fitted jug valve, and low and behold same problem! have checked all pipes for blockage,s etc, all wiring connections, now at my wits end, maybe time to throw the old megger away,[after 36yrs] willing to try one more time! then its a long walk into the sunset, or back to marigolds.. kencomet..
Re: bosch SGS45EO86B. dishwasher
not being funny but have you checked the hose that runs from the sump to the fill chamber on the side as when they are blocked up it will cause exactly that problem, im assuming that it isnt flooding it just thinks it is.
Re: bosch SGS45EO86B. dishwasher
Thanks smartin, found problem, yellow lead from jug valve, to blue block connector o/c. in base of connector. now have no motor action, although motor getting warm , motor free, cap tested ok, does anyone have motor wiring diagram! have resoldered two blue leads on small motor connectors, Thanks once again..Kencomet…
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