If your dryer drum has stopped turning, the most likely cause is a broken drive belt — you can check quickly by reaching into the drum and turning it by hand; if it spins easily the belt is probably snapped. Less commonly, a faulty timer can interrupt drum rotation, though you should only suspect the timer after checking the more common parts. A loose or intermittent power connection can also make the dryer stop turning, so confirm the cord is secure. Clogs or obstructions in the blower wheel can bind the motor and prevent the drum from spinning, and a worn idler pulley that no longer tensions the belt will have the same effect. Finally, a failing drive motor that overheats may cause the dryer to start then stop until it cools. Whether you need a replacement belt, idler pulley, blower wheel, motor, or an electrical part, enter your model number on RepairClinic.com to find the exact replacement part for your dryer and the parts diagram that matches your machine.
01 - KitchenAid Dryer Timer
A dryer drum that has stopped spinning unexpectedly could be caused by a faulty timer. However, this is very rarely the case. Before replacing the timer, check all the more commonly defective parts. If you determine that all of the other components are working properly, test the timer by using a multimeter and consulting the wiring diagram. If the timer is defective, replace it.
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The drive belt is a very long, slender belt that wraps all the way around the dryer drum, around a tension pulley, and then around the drive motor pulley. Over time, the belt can break from normal use. If the belt is broken, the dryer won’t turn. To quickly determine if the belt is broken, reach into the dryer and turn the drum by hand. If the drum spins very easily, the belt is likely broken. Next, inspect the belt to confirm that it is broken. If the belt is broken, replace it.
Confirm the power cord is plugged tightly into the wall receptacle. A loose plug can provide intermittent power to the dryer and cause it to stop spinning during the cycle.
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04 - KitchenAid Dryer Idler Assembly
The dryer's idler assembly puts tension on the drive belt so the belt can rotate the drum during operation. A defective idler assembly can cause the dryer drum to stop spinning. Inspect the idler pulley and make sure it spins freely on the shaft. If the idler pulley is stuck, worn or damaged, we recommend replacing the drum drive belt in addition to replacing the idler assembly.
The blower wheel works with the drive motor to draw air into the dryer drum. Clumps of lint, socks, and small articles of clothing can escape the lint filter and get caught in the blower wheel. Since the blower wheel is usually attached to the same drive motor shaft that drives the drum belt, an obstructed blower wheel may prevent the drum from spinning. To determine if the blower wheel is working properly, remove the dryer vent and assess the strength of the air flow. If the air flow is weak, check the blower wheel for obstructions. If no obstructions are present, try rotating the blower wheel by hand. If the blower wheel... wobbles as it turns, replace it.
The drive motor turns the drum and the blower wheel to exhaust the air. If the dryer runs, stops for a while, and then starts again, this likely indicates that the motor is overheating, causing the dryer to shut off until the motor cools down. First, remove the belt from the motor and check the blower wheel to ensure that it is not obstructed. Next, with the belt removed, try rotating the drum by hand. If the drum does not rotate freely, determine what is causing the drum to bind. If the drum turns freely and the blower wheel is clear of obstructions, the drive motor might be defective. If you suspect the motor is at fault..., replace it.
The dryer's idler pulley puts tension on the drive belt so the belt can rotate the drum during operation. A defective idler pulley can cause the dryer drum to stop spinning. Inspect the idler pulley and make sure it spins freely on the shaft. If the idler pulley is stuck, worn or damaged, we recommend replacing the drum drive belt in addition to replacing the idler pulley.