Just bought a new North Trail 31rlss 2 months ago and we are now honeymoon camping at ST Andrews State Park in the Florida panhandle. The problem is, we turned on the heater for the very first time and although it is producing heat, the heater is making a terrible buzzing/humming sound, so loud the neiboring campers can hear it and we obviously dont want to leave it running. I removed the face plate and looked at the unit (as if I knew what to do when I got there) and saw nothing out of place. Any ideas until I can get it back to the dealer. Thank god we brought a space heater w/ us.