I had my refrigerator stop cooling, so called a mobile RV repair guy. One look, and he knew I needed a new cooling unit, which will be be ordered tomorrow. He left it semi running on ac.<br/><br/>Tonight, I heard a not good noise, went outside, and saw the area around the burner was on fire. Turning off the propane and ac didn't stop it, but the fire extinguiser did. Now I have...