66 T-bird Turn Signals going bad

The sequential turn signals in my T-bird have gone bad. They were working fine, and then would only work when it was cold outside(?) Now they don't work at all. (I live in the desert, and its hot as hell, so it may still be in stage two). Any suggestions? I'm not getting any lights on the front, rear or fenders.

Metal contracts when it is cold so you may have a bad connection somewhere in one of the circuit connectors or switch. Have you replaced the flasher?