If your RCA dryer won't stop running or the drum keeps tumbling after a cycle, start with the venting. Restricted airflow from a clogged vent or lint buildup raises cabinet temperature and forces the dryer to run longer, so clean the vent and lint trap first. Next, make sure the anti-wrinkle or tumble option is not selected; that setting will periodically tumble clothes after the timer ends and can feel like the dryer won’t turn off. Check the blower wheel for lint, socks, or a worn sleeve that lets the wheel wobble and reduces airflow. Also confirm incoming power is solid: a tripped breaker or a loose power cord can cause intermittent operation that looks like the dryer keeps running. If venting is clear and the unit is heating correctly, a faulty control board or main control board can allow the dryer to run past the expected time; inspect the board for damage and test for voltage to the motor. 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 - RCA 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 - RCA 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.