I drain my cabin in the winter and disassemble the mixer to drain the pipe up to the shower head. Everytime I put it back together I get cold for the hot setting and hot at the cold setting. I've tried all sorts of combinations, flipping the blue body, rerotating the double toothed dial???? How does the metal dial fit into the toothed plastic piece that controls the turning of the central metal rod with the rectangular end that accepts the handle?? HELP!

Plumbing - Moen - 3175 Legend One Handle Shower Faucet With trol Pressure...