Most of the 80 Series electric dryers have a thermal fuse on the blower housing that will prevent the dryer from starting. A problem with the door switch or other components could also cause this problem. A pop top shorting the metal sensor bars inside the drum will not usually cause the failure that you are describing.
There are several different types of Kenmore Series 80 dryers. Here is a link for a previous answer that shows where that fuse is located on the 2 most common types of Kenmore 80 Series dryers:
how do i repair my kenmore 80 series electric dryer?
This information may help you locate that fuse in your dryer.
Unplug the dryer
before accessing internal components. You can check that fuse as shown in this brief repair video:
Thermal Fuse Testing
. If that thermal fuse is bad, you can order a replacement from the
website. Use the full model number of your dryer to access the parts list diagram and order the correct part for your exact model.
NOTE: If that fuse was blown, be sure that you check the exhaust vent duct system to the outside of your home for a restriction as shown in that video.
If the thermal fuse is okay, I recommend that you reply with additional details and the full model number of your Kenmore Series 80 dryer. We will assist you further once we receive more information.
If you do not feel confident repairing this problem yourself, then you can have it repaired at your home by a Sears technician. Here is a link for the website:
Sears Home Services