When a clothes dryer starts up and runs normally for just one or two minutes before shutting itself off completely, the issue is typically caused by a clogged exhaust vent duct triggering high-temperature safety thermostats, a dirty moisture sensor bar covered in detergent film, or a failing centrifugal motor switch. When restricted airflow traps extreme heat inside the drum, safety cut-offs shut down the machine to prevent fires. You can troubleshoot airflow easily. You can verify that your corrective action is successful when cleaning lint out of the exhaust duct, washing the metal moisture sensor bars with rubbing alcohol, or clearing outdoor vent flaps allows the dryer to run through a full, uninterrupted cycle.
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