Hi (and thanks!). I've got a Whirlpool quiet partner 1 dishwasher that fairly recently stopped getting the upper rack clean. Lower rack seems to clean OK. I've pulled out the middle spinner to verify it isn' full of stuff.

#1: How do I defeat the door interlocks so I can observe IF all the arms are getting water?

#2: If the lower arms spins, but the middle doesn't, and the feed tubes are not obstructed, any suggestions?

I'm wondering if it's the seal between the middle spinner and the feed point on the back wall of the dishwasher, but I don't see any evidence of a gasket or a way to seal them tightly-could I have pressure loss there? If I can at least observe them working, I may be able to spot something.

Thanks again!

Sid

OK, seemed to fix itself for a bit, now it's back. Removed bottom arm, feed tube running up the back, took the 4 torx screws off, took off the filter, cleaned out the gunk (not too much) that was under there, put it back together. Feed tubes also not obstructed.

Any suggestions???

Thanks much Rich!