If the home isn't occupied all the time, you may have something blocking the dryer exhaust vent ducting or blower housing inside the dryer. This is usally caused by either birds or mice building nests in these areas. If you haven't inspected the dryer vent ducting or interior cabinet anytime recently, now might be a good time to do so.
Usually what happens in these circumstances where the dryer cuts off mid cycle, or fails to regulate heat properly, is the appliance isn't provided with enough air flow to properly vent. Without proper ventilation, the dryer heating element actually overheats and the Hi-Limit Thermostat will cycle it off. If the problem is not resolved, eventually the dryer will overheat to the point of failure. The common cause is the Thermal Cut-Out and/or Hi-Limit Thermostat. NOTE: If either one of these components are found to be defective, you need to replace BOTH of them. Failure to do so may result in premature failure of any components you replace. However, if either one of these components were to fail, your dryer would still start, but wouldn't heat
In your case, the THERMAL FUSE
is probably bad. The thermal fuse is located on the blower fan housing inside the dryer. It is a small component with two
wires attached and is usually white in color. To access, you need to open the toe panel directly below the dryer door. This is accomplished by inserting a putty knife along the top seam of the panel where it meets the front of the dryer. About two inches in from each side is a retaining clip that needs to be depressed to release the panel door. Once the panel door is open, locate the thermal fuse on the blower fan housing directly under the dryer drum. Remove the wire leads and take any measurements across the terminals of the fuse. If good, the fuse will read about 0 ohms when measured with a multi-meter. If bad, it will read an open and must be replaced. CAUTION: Make sure you UNPLUG the dryer BEFORE servicing.
Some other problems that will cause a dryer not to start:
Broken drum belt
Broken door latch
Seized Drive Motor
Tripped Service Breaker
Bad Power Cord
Bad Electrical Receptacle
The following two links can give you more advice on how to troubleshoot an ELECTRIC dryer with a no heat, or not start problems:http://www.fixya.com/support/r3576548-dryer_runs_but_does_not_heat http://www.fixya.com/support/r3574266-thorough_dryer_advice
You may want to also verify your source voltage at the receptacle, service breaker, and verify your power cord.Replacement parts can be purchased at any of the following websites:
The first three sites listed also have helpful exploded view parts illustrations that you can use to locate and properly identify any parts you may need. If the model is correct, the part number for thermal fuse is 3390719. If you have questions, or require additional assistance, please post back with a complete MODEL NUMBER and let me know. I hope this helps you.
NOTE: If your model number is not listed on some of the websites, use the part numbers from the Sears website and use that as your search criteria. Some model numbers will not reference on some sites, but the part numbers will.