I downloaded and read all of the pertinent information and in theory what is happening can not happen. The "pop" definitely appears to be gas related. The entire propane system has been leak/pressure tested and is secure. IF the problem was re-creatable at will, a solution would probably be found; however, it is not. Subuurban will not offer any assistance because of "liability" concerns. As typical, take your RV to an authorized service center; which is impossible. I guess I am the only one since the dawn of creation to experience this problem. Thank you for your help.