Determining whether a clothes dryer drive motor has burned out and failed completely involves observing specific operational symptoms and performing electrical continuity tests. Key signs of a blown or seized motor include the dryer humming loudly when you press start but refusing to tumble the drum, a strong burning electrical odor coming from the lower cabinet, or the motor thermal overload protector tripping repeatedly. You can troubleshoot motor faults safely using a digital multimeter set to ohms resistance to test the motor winding terminals. You can verify that your dryer motor is bad when confirmed operating voltage reaches the motor terminals but the rotor fails to turn, indicating that you must replace the drive motor assembly.
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