If your Danby dishwasher spray arms are not spinning, the machine usually is not moving water where it needs to go. On this symptom, the most common causes listed are a damaged or blocked center wash arm support, lower wash arm support, or upper wash arm support, since each support feeds water to the spray arm or wash arm. If one is cracked, clogged, or not lining up with the water supply nozzle, your dishwasher spray arm not turning problem can leave dishes dirty after the cycle. After checking those wash arm support parts, look at the control board and main control board, because either board may fail to send power to the water inlet valve, which can keep the dishwasher from filling properly and lead to dishwasher spray arms not spinning. A bad timer is another possible cause, but it is often misdiagnosed and should be checked after the more likely parts. For the right fix, inspect the spray arm path for obstructions and enter your Danby model number on RepairClinic.com to find the exact replacement control board, main control board, timer, or wash arm support that fits your dishwasher.
01 - Danby 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.