I have a 2016 avenger ati 26bb T/T. The atwood furnace is giving problems. Dealer has replaced circuit board due to corrosion,which to me indicates water getting to the board , it is located right behind the vents on outside cover. Has anyone else had this problem? how did you fix it? I'm thinking about useing liquid electrical tape to cover circuit board but am wondering if I should. Would it just cause more problems.