This Kenmore dryer operates on two fuses, and it is possible for the fuse that controls the heat to go out, leaving only the fuse that controls the power working. This results in the dryer running but offering no heat for the drying cycle. Replacing the blown fuse will solve this problem.
Too much lint building up on the lint screen can cause the drying cycle to be less effective. If you remove the lint screen and have a buildup, remove it with your hands by rolling it off. Kenmore suggests you clean the lint screen in this manner before every drying cycle. This keeps the dryer working at maximum efficiency.
When the dryer stops drying, the cause may be an obstruction in the exhaust duct or hood. The exhaust duct connects the back of the dryer to the outside. Lint or outside debris can clog the duct and hood. Clear any clogs with your gloved hand or a long tool or instrument that allows you to reach deep into the duct or up the hood.
If your Kenmore dryer is not getting your laundry dry during the drying cycle, high humidity may be the cause. This can be remedied by acquiring a dehumidifier from a local home improvement store. Once you have it, operate it near the dryer when the dryer is in use.