Recently installed a Honeywell Thermostat. Heat has worked great. Now that it is warming up Itried to fire up the a/c or the fan and they won't turn on. I believe I may have messed up the wiring at the furnace end of things. Getting hot, please help:) My furnace is a Carrier. I believe it had a jumper between to terminals when I was installing thermostat earlier in year. Now it doesn't. Does anyone know what wires go where?