Bosch dishwasher parts schematic

[Graham Jones]

Hello,

I have a problem with my Bosch dishwasher. While the machine is not in use waste water seeps in and collects in the bottom of the machine. The drain hose is connected to the sink trap as per the installation instructions. The dishwasher can be turned on and reset pressed to force the machine to pump the water out, so not a huge problem.

But I decided to take a look and opened it up. Some muck in the plastic water maze type thing so cleaned that out. Then I did a Google and found someone with the same problem and the answer was the inlet value needed replacing. This could be the cause and while I have the machine dragged out and opened up I thought I might as well replace it.

But I cannot find an inlet valve in Bosch's list of spare parts. See here:

that doesn't work the model number is SGS43E08GB

The most likely parts are on page 4 and are:

29 8656 Water inlet 26 3185 Regulator-water level Pressure switch assy 48 2936 Pressure chamber

The water inlet is the plastic maze type thing I have already cleaned out, could this be it? Although I would have expected something that was opened/closed electronically.

I would be most grateful if someone could identify the water inlet valve for me as I am under pressure to fix this, as you can imagine!

Thanks,

Graham

[BigWallop]

As the waste hose leaves the trap under the sink, raise it up above the trap as much as you can to form an upward bend toward the worktop. If the waste hose is left dangling down as it leaves the sink trap, you're asking for water to run back down the pipe. It should all the problems.

Good luck with it.

[BigWallop]

It might even "Cure" all the problems. :-)

[Bob Eager]

Does sound as if the drain hose isn't fitted quite right. May be the routing of the hose, or just the exact way it's fitted to the trap. Or there might be crud in the trap, meaning the water wells up and goes into the d/w pipe.

I'd spend some time eliminating this first.

Normal. Best avoided by a regular flush through with d/w cleaner or some substutute.

I don't understand this. The INLET valve? We're talking waste water here, surely? I suspect that was a different problem; inlet valve faulty would let in clean water, not waste water.

That's correct. The water inlet valve would be at the back somewhere, connected to the inlet hose, before the 'maze'. The maze is used to pre-heat incoming water using waste water.

I repeat, the inlet valve sounds like a red herring. Check the hose, and clean out the sink trap thoroughly.