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to get heat going for temporary..are you able to remove the top portion of thermostat to where we can see the wires?
If you need heat cross the red and white wires...this turns on the furnace...however it will not shut off until the wires are taken apart.
Now the bad news. This thermostat is not field repairable. It has been compromised during the power outage and is no longer operational. I apologize but these are just not repairable.
You will need to get a new thermostat...and then follow the same wiring...
red to r
white to w
yellow to y
green to g
I would love to be able to reboot your existing thermostat, but it is not possible.
you got it...power off to furnace...swap wire for wire...and you good to go.
If you hit a snag just pop back in here.
nope...usually once it has a power issue it is gone.
I will just close