Help! I have a hydroflame model 8012 that has burnt out 2 thermostats. I talked with a rv service man who suggested that I replace the relay switch, which I did, and again a burnt out thermostat. Now when I turn on the repaired thermostat, nothing happens.....no damage to the thermostat, no fan motor turns on, and no heat is generated. I've checked the fuse (it's OK), circuit breakers are OK,
battery is good. Any ideas? Thanks, Dale H