We have a Carrier Heat Pump that was installed with the home at purchase in 2002. The blower fan will not come on. We have double checked all breakers. Any suggestions?

Start at the transformer and make sure you have 24 volts (check for a blown fuse for control circuit ) Next jumper the green wire from the thermostat to the red wire from the thermostat, the fan should run at this time, Good luck, Mike