Hi, new member here. I have an 850 pro and Silver Star digital electric vertical smoker (2 series) just over 2 months ago Pit Boss customer service ordered a warranty replacement controller after electrical problems with that unit. I'm still waiting and the only info I get from Pit Boss is that the part is still back ordered. Sure glad I have another smoker to use. Wondering if anyone else is having similar problems. The customer service folks have all been very nice but I am disappointed at this long wait.