Level of DifficultyEasy
Time to do repair1- 2 hours
Age of Appliance1 - 4 years
**** A stubby Philips screw driver will save you a lot of headache taking the two retaining screws out that hold the drain pump assembly to the hanging bracket *** An inspection mirror was also helpful trying to locate these screws.
I thought the pump impeller vane was possibly broken because the pump would not drain the dishwasher but it would energize and make a loud clicking/rumbling noise.
1) Drain water from the dishwasher. I used a piece of tubing and siphoned the water out. Remove front cover plate.
2) Turn off breaker and dsconnect two wires going into pump.
3) Remove the pump inlet. I kept the 4" rubber jumper piece attached when I took the pump out.
4) I had to disconnect the wash water feed line to be able to reach the hose clamp on the pump outlet.
5) Loosen hose clamp on the pump outlet if you can reach it, otherwise remove the two screws that hold the drain pump assembly in. There is one screw on each side of the pump. I used an inspection mirror to see the screws. I had to use a stubby Philips head screw driver to take the screws out.
6) Wrangle the drain section out and finish taking off the pump outlet hose clamp. Install new pump and work backwards to put it together.
When I pulled the pump out I found the impeller to be complete (not broken as I had thought) and I saw it had two small steel balls that sat in grooves. I think the two balls and groove act as a safety detent and disengage the pump if something big gets sucked in. I pushed down on the impeller and everything snapped together nicely. Since I already ordered a new pump and I had everything taken apart already I installed the new one but I think I could have just used the old one.
Hope this is helpful to someone else. Washer has worked fine since.