If your Roper dryer starts on its own or the cycle begins without you pressing start, the most likely culprit is a failing motor relay, followed by a bad timer and then a faulty control board or main control board. Less often the problem is a malfunctioning touchpad, start button, or user control and display board that is sending intermittent signals and making the dryer start or keep running. Before you buy parts, verify the start button and touchpad are not stuck, try a power reset, and if you’re comfortable testing components use a multimeter to check the relay and timer and visually inspect the control board for burned spots or loose connectors. If testing shows a bad component, replace it to stop the dryer from starting on its own or from running when it should be off. Enter your model number at RepairClinic.com to see the exact replacement motor relay, timer, control board, or touchpad that fits your dryer and get step by step repair help.
01 - Roper Dryer Motor Relay
If the dryer touchpad is working appropriately, it's possible the motor relay is defective. However, this is not that common of a problem. Before replacing the motor relay, check all the more commonly defective parts. If you determine that all of the other components are working properly, you can test the motor relay by using a multimeter and consulting the wiring diagram to help determine if it is malfunctioning.
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If the dryer touchpad is working appropriately, it's possible the timer is defective. However, this is not that common of a problem. 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.
If the dryer touchpad is working appropriately, it's possible the main control board is defective. However, this is not that common of a problem. Before replacing the board, check all of the more commonly defective parts. If you have determined that all of the other components are working properly, replace the main control board. (The control board cannot be easily tested, but you can try to inspect it for signs of burning or a shorted-out component.)
If the dryer touchpad is working appropriately, it's possible the main control board is defective. However, this is not that common of a problem. Before replacing the board, check all of the more commonly defective parts. If you have determined that all of the other components are working properly, replace the main control board. (The control board cannot be easily tested, but you can try to inspect it for signs of burning or a shorted-out component.)
If the dryer's start/cancel button is only working intermittently, it's likely the user control and display board is malfunctioning and causing the dryer to start running. A new board will need to be installed to resolve the problem.
If the dryer's start/cancel button is only working intermittently, it's likely the user control and display board is malfunctioning and causing the dryer to start running. A new board will need to be installed to resolve the problem.