Does this problem happen only on 1 particular cycle on the timer?
( Auto Perm Press, Auto Cotton, or Timed?)
The same thing happened to me only during the Auto cycles, but it
worked fine on the Timed cycle. It turns out when I took my timer
apart, I noticed the contacts for the heating element were not making
good contact in the "Auto"modes, but in the "Timed" mode, the heating
contacts are internally connected and stay on all the time. Try it in
"Timed" mode for about an hour. If it works, then the problem is with
the timer