Thinking of purchasing the regular Nest Thermostat. This is the current thermostat in the home.
Red wire >>> RC
Brown wire >>> G
Yellow wire >>> Y
White wire >>> W
There's a jumper on RH and RC. Google says jumper wire is not needed, so I can toss that. I'm not sure about the blue wire though. It's not connected to anything. System works fine - heating and AC cooling. Should I leave the blue wire alone or connect it to the "O/B" on the Nest Thermostat?
EDIT: My bad. Blue wire could go into C from what I've read.
I'm just checking in to make sure that you've seen our response. Please let us know if you have any other questions or concerns as I will be locking this in 24 hours.