Connecting the NEST to a Carrier 38YRA Heat Pump

This should be a simple problem for anyone with any knowledge of both produ cts.

I probably could have figured it out, but my son, bless his heart, who gave me the Nest for Christmas, installed it when I wasn't home. He wired it wr ong. The heat blows when the A/C is on. Luckily he didn't label the wires, write down where the wires went in the original Carrier thermostat, or take any pictures of the original connections, so I'm starting with a clean sla te.

I have 8 different color wires running to the thermostat:

Blue Orange Green Brown Yellow White Black Red

My son wired it this way:

Blue - C Orange - W2/Aux Green - G Brown - Y2 Yellow - Y1 White - W1 Black - O/B Red - Rc

I haven't a clue where to start.

Any advice would be greatly appreciated, because even though it's January 3 rd, it's 85 degrees and very humid here in Sanford, FL.

Thanks-Hank D.