I need to change a lennox 51h4001 thermostat to a vision pro TH8000 thermostat. I need to know where the wires land on which terminals on the new thermostat. If anyone could help it would be very much appreciated.

Do you have a gas furnace? Or electric? Heatpump or ac?

Electric

OK and you have a heatpump or just a ac unit?

Yeah its has a heat pump also

OK do you still have your old t-stat on the wall?
If so let me know what colors are on what terminals now.

Yeah it goes w1-orange, o-black, g-green, c-yellow, rh-blue, y1-red

Every single wire is backwards except for green. Lol but you will have to wire it back this way or you will have to change the wires at the furnace also. Your old stat did work the way this is wired right? If so I will give you the list for the new wiring.

Yeah lol it works like this I thought it wasn't making sense when I was reading the instructions for the new one

Ok if we go by the way you have it now.

R-blue jumped to rc
G-green
o-black
c-yellow
Aux-orange jumped to e
y-red

On this new t-stat on the left side it only has 2 terminals s1 and s2 on the right side it goes rc and r with a metal jumper , w, y, g, and c

There must be more then that is this a 2 heat 2 cool stat?

Yeah I think