Steve, we have been replying via email to what we believe has been you since the 23rd and have had no reply. Can you call us direct at 800-328-8313 and ask for Earl or Jeff

Contact Pro Smoker direct at: info@pro-smoker.com
While pressure can build up in the unit when using pellets or chips, it’s very uncommon for this to occur using sawdust (dry or wet). Additional information is needed as there are zero instances of this happening with sawdust.