AC isn't working and discovered a lose red and white wire on my furnace circuit board, and wondering where it connect to. I followed the wire and the other end runs outside to my AC. The odd thing is that I have 2 white wires running out my house, both white wires connects to a single white wire that connects to my AC contactor. 1 white wire running out the house have a red and white wire inside of it, the other white wire have multiple color wires inside but only the white and red are being used. All 3 white wires are spliced together by their red and white ends. Hope this isn't too confusing, please help.