02-27-2026 01:50 PM
Hello, I recently purchased an older home with 2 thermostats (both older, but one super old). I used the nest compatibility checker and it ended up telling me to submit pictures for both thermostats, so I figured I would try posting them here. I was wondering if either of these thermostats would be compatible with a nest system. Thermostat 1
Thermostat 2
02-27-2026 04:07 PM
Looks like you have a couple of Heat Pumps the second older one might have emergency heat. How comfortable are at going to the Air Handler and taking front panel off?
The Cooling Wizard
02-27-2026 04:29 PM
I'm comfortable enough to take a crack at it.
02-27-2026 08:21 PM
Give these a try
Top
Red - RC to Rc (jumper to R not needed
Orange - O to OB
Yellow - Y to Y1
White - G to G
Blue - B to C
Bottom
White - W1 to W1
Black - X to * (set as Emergency heat)
Blue - Y2 to Y2
Yellow - Y1 to Y1
Red - Rc to Rc (jumper not needed)
Brown - W2 to W2