I've now turned it off to be safe.Īn HVAC technician came to take a look at the furnace. But this only lasted a couple of minutes before it shut off again. When I turned it back on, the furnace turned back on and the fan kicked in. I turned the NEST off for a couple of minutes. I ran the troubleshooting (breaker, power switch, etc.) but these didn't correct the problem. It did this a couple of times and then it stopped coming on all together.Īt this point the NEST had a fault notification that there was no POWER coming to the NEST from Rh wire. Sure enough, once the timer elapsed, the furnace can be heard coming on but the fan would not. It advised that this may be an indication that something was wrong with the furnace. There was a message on the screen that said the "boiler" was shutting off frequently during the heating cycle. I checked the NEST and it showed that the start-up of the furnace to return the home temp to the set temperature was "delayed" by 3 minutes. This evening I noticed that the home was starting to feel cold (north of Toronto, Ontario Canada). Shortly after moving in we replaced the original thermostat with a NEST unit. I'm pretty sure it's from the early 90's. It has a DC90 Ultra High Efficiency furnace and a heat pump/exchange system. ![]() ![]() My wife and I bought our home in July 2014.
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