Samsung Dryer not heating

Brand:Samsung
Model Number:dv42h5200ew/a3
Main Symptom:not heating up
What happens & when: roughly 2 weeks ago the self time adjusting part of dryer would not adjust and it would run forever and overheat our clothes now we have no heat at all

Error Code (if any):
Parts or tests already tried:
Photos / video link:

Check the venting first and foremost to make sure that it is clean. Then you will need to test the thermostats and thermal fuse to make sure that they test good for continuity. If they do not then replace whichever part is faulty.