Dodge avenger heater problems

Is there is no air being push threw the vents? If so the blower motor is subject and needs attention whether connections or replaced as a unit, they are not designed to be repaired if motor is bad.

Thermostat has nothing to do with it not blowing. With ignition switch in on position but engine not running turn heater on and see if u can hear the blower motor running, if you don't, check voltage at the motor plug, if there's no voltage no sense replacing motor, check voltage coming out of climate control switch and the resistor next to the motor, they go bad as well. If voltage present on motor but not turning, replace blower motor