If your KitchenAid dryer won't stop and keeps running after a cycle, the most likely cause is restricted airflow from a clogged vent or vent line, which raises cabinet temperature and forces the machine to run longer until the load is dry. Check and clean the dryer venting system first, at least once a year, then verify the anti-wrinkle or extended tumble option isn't selected, since those settings intentionally tumble clothes intermittently after the cycle ends. Next, inspect the blower wheel for lint or small items that can jam it or for a worn blower wheel sleeve that lets the wheel wobble and reduce air flow. Less likely but possible causes include intermittent incoming power from a loose plug or tripped breaker and a faulty control board or main control board that allows the dryer to run past the intended cycle. If you find a damaged blower wheel, control board, or venting component, enter your model number on RepairClinic.com to find the exact replacement part for your dryer.
01 - Air Flow Problem
If the vent line is clogged or partially clogged, it will restrict the airflow through the dryer, substantially increasing the drying time and cabinet temperature and potentially causing a burning smell. To ensure proper dryer performance, you should clean your dryer's venting system at least once per year.
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02 - Anti-wrinkle cycle option selected
Most dryer models have an anti-wrinkle cycle option that can be selected to reduce wrinkles. When selected the dryer drum will tumble the clothes every few minutes after the cycle is completed to help keep wrinkles from occurring. If this option was inadvertently selected the dryer will intermittently run until the clothes are removed.
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03 - KitchenAid Dryer Blower Wheel
The blower wheel draws air through the dryer and pushes the air out the vent. Clumps of lint, socks, and small articles of clothing can escape the lint filter and get caught in the blower wheel. In addition, the blower wheel sleeve can wear out, allowing the blower wheel to wobble on the motor shaft. If the blower wheel is obstructed or defective, it may take too long to dry clothes. 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 whee...l by hand. If the blower wheel wobbles as it turns, replace it.
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Confirm a circuit breaker has not tripped and the power cord is plugged tightly into the wall receptacle. A loose plug can provide intermittent power to the dryer and cause it to spinning stop during the cycle.
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05 - KitchenAid Dryer Control Board
A dryer's control board controls the voltage being sent to all of the appliance's electrical components. If there's no obstruction in the dryer's venting and the dryer is heating to the proper temperature, it's possible the control board is defective and allowing the appliance to run longer than it should. You can inspect the board for signs of damage or a shorted component. You can also use a multimeter to test for voltage reaching the drive motor after reviewing the dryer's wiring diagram.
A dryer's main control board controls the voltage being sent to all of the appliance's electrical components. If there's no obstruction in the dryer's venting and the dryer is heating to the proper temperature, it's possible the control board is defective and allowing the appliance to run longer than it should. You can inspect the board for signs of damage or a shorted component.