Bosch Dishwasher keeps filling

[robwash]

this Bosch Dishwasher is apparently 2yrs old but has no model number on it. It is freestanding 4 program. It fills up and up until it goes into overflow. i found a dirty float in the sump which looked like a magnet/sensor. I cleaned it as it was black and i restarted program and it filled up and motor kicked in. I had already checked for blockages but found that underneath it was pretty much a sealed unit with no signs of a pressure system. I checked the water maze and the only hose which goes to it was from the valve. Any answers please. many thanks, rob

[gegsy]

Re: Bosch Dishwasher keeps filling

Hi
If you open the door slightly and look along the top of the stainless steel, you will find the model number etched onto it.
Have moved you to trade section 😀

Greg

[robwash]

Re: Bosch Dishwasher keeps filling

The model number is SGS43A22GB/O1. I forgot to say after i left property, customer put it on No2 wash and it kept filling again. cheers

[gegsy]

Re: Bosch Dishwasher keeps filling

Hi
If you remove filters and look at the 5 o clock position, there should be a removable round capping (1p size). Pop it off and remove the float (NOTE which way it came out as its imperative) Clean the travel and the float itself.
This a known suspect and there is IIRC a module p/no change which instead of relying on the float, actually does a timed fill therefore combatting the jamming float and flooding.

Greg

[clivejameson]

Re: Bosch Dishwasher keeps filling

…and check there is no condensation in the clear part of the float, if there is the float has a leak and will need replacing 😉

[squadman]

Re: Bosch Dishwasher keeps filling

And not forgetting to make sure the float is fitted the right way !

[suedehead1]

Re: Bosch Dishwasher keeps filling

i had a problem with this model the customer had removed the float themselves.
which way is the right way up?

[BSH-MAN]

Re: Bosch Dishwasher keeps filling

suedehead1 wrote:i had a problem with this model the customer had removed the float themselves.
which way is the right way up?

Grey side up.

[robwash]

Re: Bosch Dishwasher keeps filling

thankyou. i went back and had done all that was said. the float was in the right way as well. it seems that i had fixed it the 1st time. went back, nothing wrong with it….thanks a lot everyone rob

[Beever]

Re: Bosch Dishwasher keeps filling

There is a modified mushroom float and pcb for the older plastic bottom dishwashers! The new version of the plastic bottom dishwasher has no magnetic float fitted.

[robwash]

Re: Bosch Dishwasher keeps filling

hi…fitted float and ok, but customer has rang back and its still overfilling. any ideas please?

[Penguin45]

Re: Bosch Dishwasher keeps filling

gegsy wrote:and there is IIRC a module p/no change which instead of relying on the float, actually does a timed fill therefore combatting the jamming float and flooding.

Chris.

[robwash]

Re: Bosch Dishwasher keeps filling

sorry mate but not quite understanding you. i understand there is a module that is doing a timed fill. are you telling me that is what is needed? if so have you got a part number please. many thanks rob

[Penguin45]

Re: Bosch Dishwasher keeps filling

If I understand Greg’s post correctly, the original module did not have a timed fill cut off. The new module does, so you’re supposed to change the mushroom and the board together.

Oi, Greg! What’s the numbers?

Chris.

[gegsy]

Re: Bosch Dishwasher keeps filling

Hi
Module – 489492 – £64.80 + VAT
Safety System – 489542 – £4.90 +VAT etc both available from spares@ukwhitegoods.co.uk.

Greg

[Author]

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