Re: Suburban heater problem...
If I remember right, our Suburban has wires that come through holes in the case of the heater. Maybe your bouncy ride caused the insulation to abrade.
Check your thermostat wires, too. Our A/C thermostat is mounted on the other side of the wall from the microwave. The microwave bouncing around wore away the insulation, which sent 12 volts through the thermo wires, burning the insulation off of them inside the Starcool power box.
DesertBoat ...has been SOLD. Sad to have seen it go.