If your Maytag dishwasher spray arms are not spinning, the machine usually is not getting or directing water where it needs to go, which can leave you with a dishwasher not washing properly and dishes still dirty after the cycle. On this Maytag symptom, the most likely causes start with the control board or main control board, since either one may fail to send power to the water inlet valve, preventing the tub from filling with enough water to turn the wash arm or spray arm. After that, check the timer, though it is often misdiagnosed. The more common hands-on problems are damaged or blocked wash arm supports, including the center wash arm support, lower wash arm support, and upper wash arm support. If one of these supports is obstructed or not lining up with the water supply nozzle, your dishwasher spray arm not turning issue makes sense fast. Look for debris, cracks, or poor fit before replacing parts. Enter your Maytag dishwasher model number on RepairClinic.com to find the exact replacement control board, main control board, timer, center wash arm support, lower wash arm support, or upper wash arm support for your specific machine.
01 - Maytag 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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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.
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.
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.
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.
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.