You need to check the controller board and the thermocouple. Also, clean the burner and chimney. If you get a new board, get the one manufactured by Dinosaur and not the OEM board.
Amateur Radio Operator (KE5DFR)|Full-Time! - 2012 6.7L Ford Crew Cab Dually -2013 HitchHiker Champagne 38RLRSB - Travel with one Standard Schnauzer and one small Timneh African Gray Parrot