Dryer has trouble starting

Appliance Repair QuestionsCategory: Clothes DryersDryer has trouble starting
Darrell asked 9 years ago
I think my dryer timer is going bad.  It won't start on the timed setting except less than 40 minutes.  Now it is having trouble with that.  I can wiggle the knob when it is set to say 30 and it most of the time starts.  The auto dry will start then quits after a few minutes.  If it gets going it will run for 30 minutes then I have to start it over again, sometimes twice.  Before I buy a timer wanted to get some additional thoughts.  Thanks