12 yr old Bosch Dishwasher won't drain at all, cleaned out bottom part and little rubber piece...no blockages. I'm guessing its the drain pump which seems easy to replace myself. What is the drain pump I would need to order? Also should I check anything else because prior to the dishwasher not draining at all, it was backfilling from the sink water too. When I would turn on faucet and then garbage disposal, sometimes the water would fill the dishwasher, I would open it and water would come out on floor. Recently had drains under sink cleaned, but the plumber wouldn't check anything with dishwasher said I needed appliance repairman. Thank you in advance!!
Answer Hello Elaine,
This sounds like you have removed the check valve 00165262 that allows for either drain or circulation. Without this valve in place, the pump will constantly try to both circulate and drain at the same time, preventing the normal operation in either mode.
In case I am incorrect in this assumption and the drain pump is in fact the only issue, the pump 00642239 will have to be replaced with an additional connector 00623143 for the electrical connection. The wire4s are not polarized by the way, so placement of the wires in the connector can be either way. The pump will not know the difference and will operate normally either way.
I need a drain motor replacement. What part number should I order?
Answer Hello, the drain motor suggested by the manufacturer is part number 00642239. Thanks!
The drain pump makes a lot of noise however if I put pressure on the housing its quit. I noticed the impeller has some play in and out. I also noticed the motor housing in plastic has water in it. Is the water the reason its making noise and vibrating?
Answer Hi. By all means if the pump part # 00642239 armature is water logged then replace it since it is running shorted. The water got past the internal impeller housing into the motor itself. All the reason for the unnatural noise. Make sure the drain hose under the sink is looped and mounted as high to the back of the under counter wall. Forming a P-trap so the sink water does not back up into the pump and dishwasher. Thank You.