Stow the 12-banger & get into it, man!
The ol' plugger spins, right?
If it was a '49 Indian tank-shift ya wouldn't quit, would'ja?
Check for:
exhaust tube packed up w. lint,etc.
a bad temp. control sw.
A bad heating element ( high probability; assuming it's electric), or
a broken wire to the heating element
Check the element for continuity; no cont? no heat.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix tumble dryers.