So just wanted to update everyone. I had the same issue as everyone here
with their nest thermostat. I have a heat only propane system. What I
ended up doing was contacting HVAC and they ended up replacing my
expansion tank and furnace relief valve. ...
Like many of you guys here, having the same issue. My question to
everyone is, why not just removed the nest and go with something line a
Honeywell digital thermostat. In all my years I have never had issues
with those. Sure the nest looks 10x better...
