I own a BBQ restaurant and in my 10 years of smoking thousands of pounds of meat in my SM160 I have never encountered this problem. I plug it in...normal power. Works like a charm. Then it starts smoking and is working fine. About an hour or two into smoking and then it resets itself and I am left to just chase the smoke. HELP! I am thinking it is the plug. Thermostat issues normally happen and there is a power surge. It is almost like the smoker door is open and it resets itself.