Hi wscheer,
I don't think I have ever heard of someone needing to replace a thermostat in a water heater. Which one is out, propane or electric. I think they have one for each. I am pretty sure if electric, then there is a reset switch behind the black cover that you just push on. This is
link to Suburban Manual on the forum. Also you show to have a 2012 model, is it still in warranty?
Also, if you turned on the electric without water in the heater, you probably burned out the heating element, not the thermostat.
Let us know what you do.
Jim M
John is to quick...