Question about Bosch 24 in. SHU53 Built-in Dishwasher

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The water is not draining from the bottom of the dishwasher,it doesn't appear to have a blocked line. I am wondering about the pump. Is this something I can get the part for and do myself?

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In short, repalcing the pump is fairly easy and cost effective to do as you have the correct part, make sure that you replace washers and gaskets in the correct places and make sure thatt he wiring is correct and the hoses are secured.

Also
Do the following.

  1. Switch off the machine, unplug or disconnect the mains power to the machine and turn off the water supply to the machine.
  2. Remove the filter and make sure that the filter is not blocked and is clean and clear of all debris. Clean as required. Note that if the machine has stopped and not fully drained then you may be able to drain out the excess water by removing or disconnecting the waste hose and laying it on the ground in a tray. It may take a few minutes to empty but it will save a small flood.
  3. Proceed by checking the drain hose for proper connection and kinks and make sure that it is not blocked or restricted.
  4. Also check that the main waste drain pipe and one way valve to a sink waste connection if you use one, is not blocked and clean if required.
  5. Access the pump from under the lower rotor arm and protective grille and check that the impeller is free to move and is not clogged or restricted by debris or sludge. Clean as required.
  6. Reconnect the power and switch the machine on.
If the problem persists then do the following.

7. Switch off the machine and disconnect the mains power. It is a good idea to take digital pictures of the pump assembly before attempting to work on it or remove it so that you can refer back to it when you reassemble the unit or replace it with a new unit at a later date / time.
8. Remove and check the electrical connections to the pump and make sure they are in good order.
9. Remove the connecting hoses, and expect water to drain out and make sure the pipes are not blocked with debris or any object blockage. If they are then clean them thoroughly.
10. Then remove the pump and check motor is OK and that the motor turns OK. Also check that the pump impeller vanes are in good order and not blocked. If necessary replace the pump with a new and identical unit.
11. Carefully reassemble the pump observing the correct placement of gaskets, seals, O Rings, hoses and securing straps, electrical wiring.
12. Reconnect the hoses and then reconnect power and switch the machine on.

Posted on Nov 14, 2009

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