Dishwasher spray arms not spinning

If your dishwasher spray arms are not spinning, the machine cannot move water where it needs to go, so you may end up with a dishwasher not cleaning dishes or dishes still dirty after the dishwasher cycle. On this symptom, the most likely causes start with the control board and main control board, which can interrupt power to key components and affect wash performance. After that, check the timer, though timers are often misdiagnosed and should usually be ruled out after more common parts. The more likely mechanical causes for a dishwasher spray arm not turning are problems with the center wash arm support, lower wash arm support, or upper wash arm support. If one of these supports is cracked, clogged, out of position, or not lining up with the water supply nozzle, the wash arm or spray arm may not get enough water pressure to spin. Inspect the wash arm supports for damage or blockages and make sure they seat properly. To find the exact replacement control board, main control board, timer, or wash arm support for your dishwasher, enter your model number on RepairClinic.com.

01 - Dishwasher Control Board

A dishwasher's control board provides power to nearly every electrical component in the dishwasher. A faulty board may be unable to supply power to the water inlet valve, preventing it from opening and allowing the necessary water to fill the tank.

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02 - Dishwasher Main Control Board

A dishwasher's main control board provides power to nearly every electrical component in the dishwasher. A faulty board may be unable to supply power to the water inlet valve, preventing it from opening and allowing the necessary water to fill the tank.

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03 - Dishwasher Timer

The timer allows power to flow to the proper parts at the proper times. If the timer isn’t working properly, it might not send voltage to the dishwasher, causing it not to start. Timers are often misdiagnosed—make sure you check more commonly defective parts before replacing the timer.

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04 - Dishwasher Center Wash Arm Support

The center wash arm is attached to a support that is normally attached to the underside of the upper dishrack. Water flows through the support to the arm which circulates the water to the dishes in the upper rack. If the support is damaged or obstructed water may not flow properly. Inspect the support for any damage or obstruction and replace if necessary. In addition, make sure that the support is mating properly with the water supply nozzle.

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05 - Dishwasher Lower Wash Arm Support

The lower wash arm is attached to a support fastened to the sump assembly. Water flows through the support to the arm which circulates the water to the dishes in the lower dishrack. If the support is damaged or obstructed water may not flow properly. Inspect the support for any damage or obstruction and replace if necessary.

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06 - Dishwasher Upper Wash Arm Support

The upper wash arm is attached to a support that provides water to the arm to spray the dishes in the upper dishrack. If the support is damaged or obstructed water may not flow properly. Inspect the support for any damage or obstruction and replace if necessary.

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Frequently Asked Questions

Why are my dishwasher spray arms not spinning?

Can a dishwasher not filling with water cause the spray arms not to spin?

What should I check first if my dishwasher is not washing properly and the spray arm is not turning?

Could the control board be the reason my dishwasher spray arms are not spinning?

How do I find the right dishwasher spray arm support or control part for my model?

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