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My trusty Bosch s510 Dishwasher which has been going strong for about 17 years (at least) has just decided not to empty itself. I noticed the bottom was full of water after a wash. I emptied all the water out by hand and presuming there is a blockage in the drain tried using a plunger to unblock it. I have since put it through another cycle and half way through water started leaking out of the front. At the end of the cycle the bottom of the dishwasher was again full of hot 'soapy' water. If there was a blockage somewhere in the in the outlet pipe/drainage system and i cleared it with the plunger would water then just drain away or is there a valve which opens only at the appropriate part of the washing cycle and therefore the only way to know if its cleared is to run the machine? Any suggestions as to what i should try next?

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  • NancyJL Dec 26, 2008

    SHU3035 stopped draining every time - drained every 2nd cycle - then stopped completely.



    If I empty by hand and run again, it refills but again doesn't empy. It's a pretty annoying way to do a load of dishes - once with soap, once without.



    Pump? Pump belt? it's not a blocked drain, we checked it out thoroughly (without using a plunger).

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Same problem, so went out and bought a new bosch. Problem with the S510 was cured by lubricating the pump out motor bearings with a squirt of WD 40. If you don't know which pump, follow outlet hose to pump outlet.
Les

Posted on Jan 18, 2010

  • Robert Apr 18, 2011

    Been over a year but for future inquiries I had the same problem...the repairman found that the filter -grill was plugged by seeds or pits ! Once they were "dug out", the screen was cleared and the water emptied completely.

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