I have a Olympian Wave 6 Heater in my Capri Camper and last week had it out in the mountains at around 10750 feet elevation. My heater started at night and did okay but when I tried in the morning it wouldn’t light. It was the same with my butane lighter. At night after a couple of tries it lit but in the morning I got nothing. I wonder if you were at a high elevation and that’s why you were having trouble.