Wild temperature fluctuations

[Samm-Smoker]

Ready to throw in the towel. I've done everything it says to do, clean after use, clean probe, clean fire box, Change pellets.... Nothing seems to work. The problem is the temperature swings, typically to the high side on my Sprotsman 820. I can have it set to 350 degrees and it will go up to 480+ degrees, and not just once but constantly. I usually have to set the temperature 50 degrees below whatever the recipe calls for and still sometimes that's not enough.
What's my best option? Can I get a replacement controller board?

 

[Cowboy1955]

Ready to throw in the towel. I've done everything it says to do, clean after use, clean probe, clean fire box, Change pellets.... Nothing seems to work. The problem is the temperature swings, typically to the high side on my Sprotsman 820. I can have it set to 350 degrees and it will go up to 480+ degrees, and not just once but constantly. I usually have to set the temperature 50 degrees below whatever the recipe calls for and still sometimes that's not enough.
What's my best option? Can I get a replacement controller board?

Replace the controller
Pitboss sent me a few large container’s of different rubs
Hopefully this helps you