When a residential clothes dryer suddenly stops drying clothes effectively during a cycle, the malfunction is typically caused by a blown thermal fuse, a burned-out heating element, a tripped circuit breaker, or a severely clogged exhaust vent duct. If restricted airflow traps extreme heat inside the heating box, the thermal fuse immediately blows to cut off electrical power to the heating circuit and prevent a fire. You can troubleshoot heating and airflow components safely using a digital multimeter set to continuity. You can verify that your corrective action is successful when resetting the circuit breaker, clearing lint blockages out of the exhaust duct, replacing a blown thermal fuse, or installing a new heating element restores normal hot air generation and dries your laundry completely.
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