01-14-2024 09:34 PM
Hello, I am having some recent trouble with both my 3rd Gen Thermostat. It all started with one at first. That wasn't powering on due to not getting power via the Rh wire has it has for the past 2 yrs. I only have a furnace with 2 wires, white (W) and red (Rh). This has been the wires used for the past 2 yrs to control the thermostats. I have 2 separate zone. First floor and 2nd floor and the 2nd floor was the one not powering up for over a day.
On 1/14/24, I lost power to both thermostats.
I then contacted hvac / oil furnace tech and found out that my 24v transformer had gone bad. A new was installed. I was able to see that both thermostat turned on and manually was able to turn my furnace and call form heat with both thermostat.
However, I'm still getting no power to either thermostats, it shows low battery and won't connect to the internet. But I can manually control the heat.
What could be wrong?
01-19-2024 08:51 AM
Hi Toledorick,
Uh-oh! If you've recently experienced a power outage and had your 24V transformer replaced, but your Nest thermostats are still not receiving power and showing low battery, there could be a few possible causes for the issue. Could you send us a photo of your previous thermostat wiring configuration and a photo of how the wires are connected in the Nest Thermostat base? Also, check on the following:
Keep us posted. We're happy to help.
Best,
Zoe