Help with Heater/AC problem

Maybe somebody can help me. I recently bought a 1995 Galant with 125,000 miles on it. The AC and Heater both worked great. In fact the AC was really cold. I only had it a day and the tension on the timing belt went and I had to have the head replaced. Since then the heater and AC won't work. I have relpaced the heater/Ac control and checked all fuses. When you turn on the fan motor switch nothing happens. I doubt it's the fan motor since it worked so well before. Is there a relay or fuse I am missing.? If anyone can help I would be greatfull since it's starting to get hot here in Florida.
Thanks