The main causes of heat failure in dryers include a blown thermal fuse as well as problems with either the heating element or the thermostat. Initially examine the thermal fuse since it serves as a protective measure against dryer overheating. A multimeter can identify whether components have proper electrical connection. If faulty, replace it. Check the heating element for any damage and test the thermostat operation. Having attempted all possible fixes without success you should contact a appliance repair professional technician.
The failure to spin the dryer drum stems from broken drive belts as well as worn drum rollers or problems with the motor. Check the dryer belt status while the dryer is open to verify belt snap or looseness. If broken, replace it. Sustainable drum rollers lead to sticking issues that will need replacement of the entire unit. The dryer motor requires professional attention and replacement or professional maintenance when the start button fails to activate the motor operation.
You should check both the lint filter and ventilation system with a blockage detector to see if drying took longer than expected. The drying time suffers because a blocked exterior vent causes airflow restrictions. Regular cleaning of the lint trap combined with periodic checks of the vent for collectable debris should be performed after every dryer load. The proper functioning of both the heating element and thermostat must be checked during inspection. The resolution of poor ventilation requires expert assistance by a technician.
Strong noises from the dryer suggest that the belt is worn out and the drum rollers or the blower wheel have become damaged. Thumping noises during operation require you to check drum rollers for possible replacement. The squeak of high-pitched tones indicates that either the motor bearing or belt needs replacement. Replace the blower wheel or tighten it to avoid additional damage when it shows cracks or looseness.
A dryer which terminates while operation might experience overheating or its thermostat could be broken and may also possess an issue with its moisture sensor. Circulation of air through the vent and exhaust requires cleaning to stop overheating. The continuity test of the thermostat should be conducted to determine if replacement is needed. The moisture sensor requires cleaning when it fails to properly determine humidity levels. Replacement or cleaning might be necessary.