Using our 2014 flagstaff 8528 BHWS to hide kids presents in. Went today to start wrapping was really looking forward to hanging out in the camper getting Christmas taken care of. Turn the heat on and turns me comes on starts blowing but won't ignite. Got plenty of propane. Turned the burners on the stove and they lit!! Though I did think they were not as large of a flame that I remember. One of my tanks is empty the other one was full. Any thoughts?????