bosch dishwasher not draining

[suedehead1]

SGV46M43GB/01. The pump was tight so I fitted a new one but it will not drain. There is no blockages . I tried removing the non return flap
but still no drain. I tried it with door open and pushed up the polystyrene float the pump runs you can see the water being displaced but it
will not drain any ideas welcomed

[electrofix]

still got to be a blockage or air lock somewhere

is the left side water way clear ?

Dave

[suedehead1]

hi, yes it is cleara bit of black gunge at the top of the plastic, you can see water starting to go through it then it stops

[oldsodchops]

Could it be blocked between the water matrix and the drain hose connection?

[electrofix]

If not already done I would remove outlet hose from both ends and blow down it. sounds like a fat blockage

assume the pump cover is on properly

Dave

[suedehead1]

Hi, pump cover on ok, blew down hose nothing blocking it at all

[electrofix]

well onto long shots now as blockages was very high up the list. assume you tried putting hose ino a bucket intead of the drain

assume the little hole in the pump cover is clear and you have already said pump cover is in place properly.

have you checked voltage to the pump, yes am clutching at straws now

Dave

[Hollytree_Technical]

Just a thought – does it need to a functioning non return valve? The pumps only bat the water out so maybe if the non return valve is not sealing off properly the water might be returning into the machine just as quick as it is batted out by the pump.

P.S. If it makes you feel better I had a similar machine soon after I started in the trade with the same issue and I never did fix it, a new non return valve was my next guess on it but the customer scrapped it first.

[electrofix]

Hollytree_Technical wrote:customer scrapped it first.

really frustrating when that happens lol

Dave

[roy1]

I had one this week not draining,I took the clear hose off the side tank it still would not drain into a bowl.
I pushed a cable tie from the pump into the clear hose and that looked ok, but when I put water in the sump and tried again a lump of rice shot into the bowl.
Just another thought is the replacement pump the correct part.

[suedehead1]

hi thanks everyone its a genuine pump I will need to go and give it another l think the problem must lie in the matrix on the side

[roy1]

There are two different pumps ,I fitted the wrong on once the pump runs but it will not drain.

[suedehead1]

ok i will check which pump i fitted

[suedehead1]

I refitted the non return valve flap and it appears to be working ok

[Author]

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