My dishes are feeling gritty and my silverware is filmy. And, it is not cleaning well. I tried to run a qt of vinegar thru, but that did not help.

Hi,

Thanks for writing to Fixya.com.

Sometimes a buildup of junk behind the filter screen and under the cover at the bottom of the dishwasher where we also find standing water that was not draining. It seems does not have enough pressure to properly function. Tap the delivery tube that feeds this nozzle and might be the water pressure jumped immediately. So the problem lies either with the pump or maybe the impeller. Also for some reason the full flow of water is not making it to the upper spray arm. The problem was not enough water to get the arm to spin. To test this just adds a pan of water to the wash cycle and see if the arm spins. If it does then the problem may be with the water intake line. There is a screen at the connection where the intake line enters the dishwasher. So turn the supply valve off and disconnect the intake line and remove particles that may be trapped in the screen. The cause of the particles is from the hot water tank that tends to accumulate a bit of corrosion on the bottom of tank. To remedy this just open the valve at the bottom of the hot water tank and drain it in a pan until the water is clear.

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