I have a Quiet Partner 1 (model DU1055XTPQ4) dishwasher. After the cycle begins the dishwasher fills up, seems to fill fine as I hear water circulating. The 1-2 minutes after start (I'm assuming the washing is to begin after a few gallons are in tub) I hear a loud continuous buzzing. Clearly other than the buzzing nothing is happening. It drains just fine when I hit the cancel button in 1-2 minutes like normal.
Perhaps coincidentally about a month ago we had a plastic lid fall through, melt a little, and a few small pieces chip off.
I broke down and cleaned out from the tub side all the way through the accumulator, chopper assembly, etc. Found a moderate amount of junk including plastic and pea size of ceramic, noting nothing significant past the chopper screen.
That didn't fix the problem. I've broken down the entire pump assembly. I WANT TO: replace the circulation motor itself, just hoping that will fix the issue. I can't really bench test the motor or anything myself. This model is a one-pump two-way motor correct? So I'm worried if it is filling and draining okay, will the motor fix it?
I don't know how to remove the impeller, as I was told there could be a jam or foreign object there. Nothing visible. I can see no blockages in the sump housing or elsewhere, and water seems to enter and exit easily.
Is replacing the motor likely to fix the problem? The impeller is included with the motor. Would getting the motor bench tested be best? To make certain it's the issue? It's the only motor in the unit right, sure sounds like a motor that's failing...
Thanks for any help you can provide!!