Machine running loud grew worse until it was obvious the motor blew a bearing
Robert S. • Bettendorf, IA • February 21, 2015
Appliance: Whirlpool Undercounter Dishwasher DU1055XTSS2
My Repair & Advice Featured Story
We initially noticed the dishwasher running loud and failing to completely clean dishes. Research suggested issues like this were normally caused by either the main circulation motor or the drain motor. Over the next week the noise worsened, and it became obvious that the circulation motor had went (loud whirring noise whenever the spin cycle kicked in).
I watched a couple youtube videos on the removal and dissassembly until I felt confident that my wife and I could handle the project. For the most part everything went according to plan, but I will highlight 2 points that deviated from the appliancepartspro video posted on the circulation pump page:
1. The video shows a model with an electrical cord - mine had been hard wired. Not a big issue, and certainly something that would be readily apparent to someone with a little more experience. It took me some time to find and disconnect the connections, but no major harm done. Obviously, killing the power at the breaker first is paramount.
2. Seating the new pump assembly into the washer. This step threw us for a couple of frustrating hours (lunch break included). The video shows the new assembly going in after moistening the rubber seal with some force. For one reason or another, we had a heck of a time getting the thing to seat right. Eventually, I picked up on a tip from another commenter to use dish soap to grease the opening in the washer, and really soaked the seal around the replacement assembly with water. We got it to sit as level as possible, and then I would push one side and my wife would slide the retaining clip in from the bottom. Wear knee pads if you have them for this step.
All in all, this project was not terrible - it took most of a Saturday afternoon. If you're moderately confident unscrewing things and can follow directions, it's very doable. Just expect a couple curveballs (par for the diy course, I suppose).