Dishes not clean in bottom rack of Whirlpool Quiet Partner I (du1048xtps4)
The dishes in the top rack of the dishwasher are coming out as clean as normal. The dishes in the bottom rack are not getting very clean at all. Dishes that have been pre-rinsed and scrubbed still have visible smears, streaks, and other dirt on them. We have jet-dry in the dispenser and ran a wash cycle with some vinegar as well. There are no unusual noises. The inside of the tub is nice and dry after the cycle is complete.
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Your water pressure is not high enough in the dishwasher to wash the dishes on the top rack. The most common reason is that the pump in your dishwasher cannot pump fast enough to keep the water pressure up. That is because the shaft that drives the pump impeller also drives the macerator cutter that grinds up bits of food fine enough for it to pass through the screen and out to the drain. Over time, small bits of bone, broken glass, eggshell, and other items that are too strong to be cut up by the cutter end up sitting in the area where it has to spin, and they prevent it from spinning fast enough to pump enough water to the top rack with any pressure. It is simple enough to repair. You need to take out the racks, remove the bottom arm and clean out the little macerator. Once that is done, it should work great again.
the sprayer is clogged with ****. I had the exact same problem. my mother-in-law gave me of some 80 year old man that has fixed appliances all his life. Ten minuets after he got to the house it was fixed. cost $70.00. He just took a couple things apart dumped out the **** inside the parts and put it back together.
Hope this helps.
Possible that the motor impeller has good particles in it, causing poor water pressure, which would be most evident on the top rack. You would have to remove the spray arm, then the filter, then the torx screws to get at impeller....unfortunately, that model of dishwasher isn't the greatest in the first place for washing, since it only has the one spray arm.
MAKE SURE THE UPPER WASHER ARM IS NOT CLOGGED, SOMETIMES FROM DETERGENT BUILD UP IF YOU'RE USING POWDER DETERGENT. CHECK ALSO FROM THE BOTTOM IS THERE'S ANY DEBRIS THAT MAY PREVENT THE WATER GETTING TO THE UPPER WASHER ARM
In my experience, you probably have a clog in the spray arm/arms for the top rack. Take the arm(s) out and see if the holes in them are clogged. Rice, plastic wrappers, and glass from dishes that broke in there are the most common culprits I've seen.
generally dishwashers rely on the pressure supplied by the water supply line. check to see if it is enough or if inlet pipe is of sufficient diameter for needed flow.in some instances i know of seperate lines needing to be run directly instead of coming off of supply to sink area.