I have this digital thermostat controlling my heater (gas).
When I turn it on to lets say 66 deg, and the house is at 60, the HVAC will start working of course.
Problem: After few minutes, the thermostat goes dead as if there is no electricity to it. The HVAC will continue working by the way. After a few more minutes, it goes back to life as if nothing happened. That will keep happening as long as the HVAC is working.
- It never happens that I go to the thermostat and it is "dead" if the HVAC is not working
- I thought the first time it was dead, that the breaker jumped. I went to check and of course it didn't. I say of course because I just said that it will come back to life by itself after few minutes.
What is going on?