Chronic problem with Atwood water heater

Thanks for the tips! I noticed that Dinosaur was mentioned in some of my searches, if needed we will use them. We called Atwood last time this happened and they recommended the thermostat, I will give them a call tomorrow to see if they can shed any light on why it happened again. The part (thermostat) will be here tomorrow so we wil see what happens. The parts manager at our dealer said he had never heard of this happening either. Hopefully we just ran into two bad thermostats but I feel like that's not going to be the case.

Thanks!