Without model information, it is hard to guess what basic platform your
dryer is built on, but one place to look is the thermal fuse that is on
the right side of the element housing that is at the top back of the
drum. You can take a putty knife and slip it under the front edge of
the top to release two clips that hold it down, then rotate it up on
its hinges. You'll see the element at the back. The thermal fuse can
open, usually from lack of airflow. Once fixed, make sure your venting
is clear and not not kinked.