Types of Dryers
As the door typically is located on the front, you can tell if top load if the contols are located in the back on a small riser like a top load washer.
These tend to be slightly larger capacity and feature packed. The controls are located front and center with lint traps located inside the door.
Many things could be to blame including a bad fuse, temperature switch, thermostat, timer or heating coils
Drum not Spinning
More than likely a broken or worn belt is the culpret. A bad roller, motor or idler pulley could also be the issue.
Gets too Hot
This issue needs to be addressed immediately as it could cause a fire. Possible cause could be the venting is blocked.