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Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6022
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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I am replacing an old Ge thermostat (3AAT80B1A1) with a new

Customer Question

I am replacing an old Ge thermostat (3AAT80B1A1) with a new nest thermostat. I need help with the wiring set up.
Old thermostat wiring:
R (red)T (black) O (orange) G (green) Y (yellow) X2(black also) B (blue) W (yellow)
New thermostat:
Y1, Y2, G,OB,Rc, W1,W2 aux, C, *, and Rh
Thanks for any help you can provide. We have an all electric home with heat pump and furnace.
Submitted: 1 year ago.
Category: HVAC
Expert:  Daniel Plourde replied 1 year ago.

hi I am dan, I can help you with this, first I need a little more information, you say you have a heatpump and a furnace as in a gas furnace with a heat pump? also I will need to know the make and model number of the air handler.