If it's electric, it Could be that you've lost one leg of 120v.
Electric dryers are 240 volts for the heating element, but the tumbler motor and electronic control is 120 volt. Could be a bad breaker, or loose connection.
My father in laws mom had this issue when a contractor accidently cut the wire which powered the dryer outlet. But they only partially cut it through one of the hot wires.
So she assumed the dryer went bad, bought a new one and had it installed only to have the same problem.
I'm an electrician so I went over and found the problem.