Less than 4 year old Trane heat-pump system with 2 Nest learning thermostats (one upstairs and one downstairs). I believe the Nests are periodically not signaling the outdoor heat hump to engage, so I’m just recirculating the cold air that’s in here. Every few weeks, I am switching off everything at the breaker and letting the system reset. Then, wait 5 minutes, switch everything back on, and all is well. A few commonalities each time this occurs seems to be 1. Electricity flickering due to wind/weather (usually directly thereafter, I’m having issues). 2. When there’s an extended period of no movement so Nest goes into eco mode. 3. Colder than normal temps. You know, when you’d want for the thing to actually work well, lol!
I have had the HVAC guy out 3 times, no joke. He has tested free-on, pressure, electric. He has found no issue with the system itself. In fact, it was he who suggested I trip and reset the breaker when this happens. He is blaming the Nests I have. And suggests that I go back to basics with the thermostats. Can anyone share a solution? I don’t know how to post images here, but I’ll try after I hit post.
