Is Your Dryer Overheating or too Hot to Touch?

The following are the causes for dryers running hotter than normal. If you notice your clothing is too hot to touch, or, at least much warmer than usual upon completion of a load, you should stop using your dryer immediately and solve the problem. We are happy to help if needed. An overheating dryer is one step away from a dryer fire.

 

Air Flow Problem

If your dryers’ internal duct has blockage, hot air can become trapped inside the machine. If the transition hose is kinked or partially clogged with lint, it will restrict the airflow through the dryer, substantially increasing the drying time. This is true for the entire dryer duct system leading to the outside of your home. Finally, the exhaust outlet on the roof or side of your home may not be opening fully. To ensure proper dryer performance, you should properly clean your dryer and dryer vent system regularly. Restricted airflow is the number one cause for dryers overheating.

Heating Element Assembly

The heating element warms air as it passes over the element. If the element is partially shorted out, it may produce heat continuously, even if the dryer has reached the proper temperature. When this happens, the dryer gets too hot. To determine if the heating element is at fault, a multimeter is used to test the heating element for continuity. If the heating element does not have continuity, it should be replaced. Next, we test for continuity from each terminal to the case. If the heating element has continuity to the case, it is shorted out. If the heating element is shorted out, it will need to be replaced.

Cycling Thermostat

The cycling thermostat cycles the heat on and off to maintain the proper air temperature. If the thermostat is defective, it may keep the heat on too long, causing the dryer to get too hot. However, this is rarely the case. Before replacing the cycling thermostat, we check all the more commonly defective parts first. If all of the other components are working properly, we will test the thermostat by using a multimeter to test for continuity. If the thermostat does not have continuity, we will replace it.

Felt Seal

Most dryers have a felt seal at the front and rear of the drum to prevent heat from escaping the drum. If the seal is worn out or missing, the heat will not be drawn through the drum properly, causing the dryer to get too hot. The drum seal should be checked ensure that it is creating a reliable seal around the drum. If we have determined that all of the other components are working properly, the replacement of the felt seal may be necessary.

Blower Wheel

The blower wheel works with the drive motor to draw air into the dryer drum. A lint build-up on the blower wheel along with socks, fabric sheets like Bounce, and small articles of clothing can escape the lint filter and get caught in the blower wheel. The blower wheel sleeve can wear out as well, causing the blower wheel to wobble on the motor shaft. If the blower wheel is obstructed or defective, the dryer may get too hot. To determine if the blower wheel is working properly, we remove the transition vent that connects the dryer to the wall to test the strength of the air flow. If the air flow is weak, we’ll check the blower wheel for obstructions. If no obstructions are present, we will try rotating the blower wheel by hand. If the blower wheel wobbles as it turns, we will replace it.

We’re happy to help!

Please call or request service online if you wish to have us assist in solving your overheating issue.