CMoore-Tray, Have you checked out your switch inside the unit where you select gas or electric making sure you have voltage to the switch. If you have an Atwood WH there is a 2A I believe on the circuit board. Also for the gas on the WH have someone inside your unit turn on the gas side of the switch while you are at the WH and see if the valve clicks letting the gas come in to the unit. If so, check out the tube running from the gas valve to the burner and possible take it off and clean good. Sometimes bugs try to make a home in it. Good Luck.
