Bosch Dishwasher Overflow

Dishwasher Repair
1

Hi there
We have a Bosch SHU5316 which has worked well apart from the usual control module problems. Recently though, it decided to pour water all over the floor. Looking at the bottom door seal, it was obviously split, so I ftted a new one. At the same time I cleaned out all the gunk from the plastic water matrix and generally cleaned everything to do with filling and draining.

First wash, no problem, second wash - water all over the floor again. I realise that the bottom door seal is not exactly a seal - more to stop splashing and the problem is that there is too much water going in the tub. Now I’ve checked the float & flow (pressure) microswitches - both measure fine on an ohmeter. The float switch starts the pump running ok, so I suspect that there is some issue where the pressure switch or the module are not switching off the water solenoid.

So the tub fills up too much and water seeps past the lower “seal”.

Has anyone seen this before and any ideas on what to check next?

Thanks

2

When the fill valve opens, water fills the chamber and the tank in the water inlet system, activating the water level switch.

When the switch trips first time, the circulation motor starts and the fill continues.

When there is enough water and the water level switch trips second time, the fill stops.

If the float switch senses too much water it should activate the drain pump.

Most likely the cause of the problem is a bad diaphragm or a float inside the water level control.

  • The part number for the water level control assembly is AP2802380

Gene.

3

Bosch dishwash SGS43A22GB/01 Took off left hand panel after regular overfilling and leaks
On clear plastic pipe unit is one small elbow that was completly blocked

Can be removed and cleaned by carefully manipulating connecting parts