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Upper & bottom arms are not turning even though the motor seems OK, pump for draining seems OK too. rcently I changed the pump kit plus some gasket and seals. My Maytag is about 14 y\old and was very good for me untill I changed the parts. Could it be a weak motor \pump. The water splashes very much in the machine but no arm turning!? Help me thank you Ben

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Hi Ben, had the motor impellor shattered in the old pump ie-chunks broken off ? if so there is every possibility that these pieces have lodged in the wash delivery pipework at an elbow or indeed at the arm boss itself -i would try to check as much of the pipework as possible because this would definately reduce your final pressure at the arms, good luck KIT

Posted on Nov 12, 2008

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Water fills the bottom of dishwasher, lower spray arm still seems to turn/spray but no movement or water coming out of uppoer spray arm. We took apart the lines to see if there was blockage -- none.


If there is no blockage, your pump may need to be rebuilt or replaced. If your machine uses a solenoid valve to control weather the pump is washing or draining. The drain valve may be stuck somewhat open, diverting wash water down the drain. Or the wash valve may be not opening fully. Different machines work in different ways.

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My Bosch dishwasher, S9J1F will not clean things properly, I've changed the arms, cleaned it. I think the arms don't seem to spin properly, (I bypassed the door switch so I could see them spin)I have tried...


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1 Answer

Does not pump water during the wash cycle.


It sounds like you are on the right track.

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If you have to remove the wash impeller, you will need a 1" offset box wrench and as I recall a 1/4" socket. The 1" offset box wrench is needed to keep the impeller from turning while you remove the center nut. You will also need to remove the upper discharge line retainer clip to get that out of your way. Inspect the impeller for any debris and especially cracks or missing blades. If the impeller is damaged it will need to be replaced.

While you have this thing apart, check the lower wash arm and upper wash arm discharge pipe assembling for any obstructions.

I am assuming the motor runs ok and the timing cycles seem normal.

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If you google for 'whirlpool 8178022' you should be able to get KD-12 repair manual.

Goof luck.

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