Hi bat, sorry to hear you are having issues. I had a similar issue with my smoker back in May. I called the Bradley 1-800 number and spoke with a service rep who helped me diagnose my problem and suggested I replace the small motor and micro switch. They took my address and credit card info and sent me the parts, all worked out and it wasn't too pricey.
North American Customer Service Bradley phone lines are open 8:00 a.m. to 4:30 p.m. CST; Monday through Friday
Toll Free: (866) 508-7514
Local: (309) 343-1124
Fax: (309) 343-1126