When dishwasher draining, I hear a strange loud noise. All water does drain from dishwasher. Is the drain pump going bad? If so please supply the part #. Will I need to purchase a wiring adapter to install this pump?
With the noise coming in the drain cycle, you will want to check the drain pump to make sure that there is nothing caught in it. If there is nothing clogged in the drain pump then you would want to replace the drain pump 00642239.
Is the impeller suppose to be loose from the drain pump?
Answer Hello Gman. No, the impeller should be tight and should not be loose. It sounds like you need to replace the drain pump on the unit.
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.