If a dryer stops mid-cycle and then restarts after it cools down, there could be a few possible reasons for this behavior:
Overheating: Dryers have built-in safety mechanisms to prevent overheating. If the internal temperature of the dryer exceeds a certain limit, a thermal fuse or thermal cutoff may trip, causing the dryer to shut off. Once the dryer cools down and the temperature decreases, the thermal fuse resets, allowing the dryer to restart.
Ventilation Issues: Poor ventilation can cause a dryer to overheat. If the exhaust vent is clogged or restricted, hot air cannot escape properly, leading to overheating. This can trigger the safety mechanisms mentioned above, causing the dryer to shut off. Checking and cleaning the vent system regularly is important to maintain proper airflow.
Motor Problems: The dryer's motor may be experiencing issues that cause it to overheat and shut off as a protective measure. A malfunctioning motor, such as a worn-out or overheating motor, can trigger the safety mechanisms. In this case, the motor may need repair or replacement.
Electrical Issues: Electrical problems, such as a faulty power supply, loose connections, or a tripped circuit breaker, can cause the dryer to stop working mid-cycle. Once the electrical issue is resolved or the power is restored, the dryer may restart.
Control Board or Timer Malfunction: A malfunctioning control board or timer could cause the dryer to shut off unexpectedly. This issue would require professional inspection and repair to diagnose and fix the specific problem.
If you're experiencing this issue with your dryer, it's recommended to consult a qualified appliance repair technician to diagnose and resolve the underlying problem. They can perform a thorough inspection, identify the cause of the mid-cycle shutdowns, and provide the necessary repairs or replacements.