While examining dishes on the bottom rack I have come to realize that the cups and bowls are not getting washed properly. Through further investigation I noticed the bottom arm is not spinning. I removed and inspected the arm, noting no obstructions. Is there a way check for proper operation?
Answer Hello Ken,
This is usually caused by a lack of water pressure to the spray arms, This means there is either a pressure loss or a clogged screen inside the unit somewhere. You should check for separating spray arms, missing grommets in the main manifold, and if nothing is found it is time to disassemble the pump assembly from the inside of the tub. You will be looking for any screens stopped up to include the one by the chopper blade, (which would indicate damage to the shaft the blade is driven by). Also, if the discharge housing assembly 6-918807 plate has separated from the assembly, it will have to be replaced since this directs the water flow from the impeller and has a major impact on water pressure produced.
The spray arm is wobbly and hits the bottom of the basket. It was suggested that the arm should be replaced because it is worn. It looks like there should be a washer in the housing of the arm. Thanks
Answer Hello Rudi,
There is no washer under the spray arm. It is designed to be wobbly and the water pressure should take up the slack. If it is hitting the bottom of the rack, there are probably some holes stopped up and the pressure in the spray arm is uneven. I would simply replace the spray arm 6-917642 and the retention nut 99002654. Also check the chopper blade screen. The discharge housing has a flat plate inside it that should be attached to it. If it is loose, this will drop the water pressure.
Maytag 7600 dishwasher. The wash arm seems to have plenty of water and no blocking by debris. However, it wobbles and therefore gets stuck (by water feed tube on bottom) and stops turning. The screw is part of the arm assembly......should I buy a new arm?
Answer Linda, The first check needs to be at the water manifold 99002642 make sure the manifold is still attached to the tub brackets and the outlet at the top of the pump W10296525. Then remove the lower spray arm, and check the bottom side center for excess wear and damage to the openings. The last check is to the motor, remove the lower access panel, and make sure there is at least 1/4 inch clearance between the bottom of the motor and the floor, if the dishwasher is setting on the motor, this can also throw everything out of alignment.
Lower washer arm will not turn during wash cycle. Stays stationary. Should I repair or buy new?
We would need to have to model number to help to determine what my be going on with the unit. It may be a bad impeller or just something that is lodged in the pump assembly causing to not work properly.
How can we tell if the wash arms are worn?
Answer Hello Gloria,
The spray arms don't "wear" in that sense. The thing you are looking for is any holes clogged with debris and separations between the two halves of the spray arms where they are "melted" or crimped together at the factory. When the spray arms separate, the water pressure escapes from the separation and causes a "wave" to develop in the water in the bottom of the tub and this causes the water to jump the air gap. This in turn puts water in the floor.
i am getting noise during operation so i checked it out while not running, it appears that the lower washer arm is rubbing against the lower portion of the manifold. is there a gasket or friction washer that goes on the lower washer arm to act as a bearing and raise the washer arm so that it does not hit the manifold??
Answer Bill, No there are no bushings or seals between the lower wash arm and top of the pressure dome in the center of the pump. You mat want to check and make sure the bottom of the spray arm is not worn out, and that the shaft it mounts to is straight and has not been dislodged, by something sticking out the bottom of the lower rack. You may need to remove the lower access panel and check that the motor is not sitting on the floor, there should be at least 1/4 inch clearance between the bottom of the motor and the floor. Thanks and Good Luck