I'm having problems this morning trying to get my SQ14 burner working. I have tried 3 tanks (2 of which are full). I can't seem to get any propane to flow. I have tried disconnecting and turning the regulator off and wait a few minutes. Then attached, turn the propane tank on slowly, try again and nothing. Everything looks fine about the burner and I can't figure it out. Ive used it about 10 times so its still fairly new. Anyone else have similar problems?