Heating maintenance auburn. Completed maintenance on 2 systems. Upstairs is 11 years old. System is heating properly. Customer replaced ductwork himself. Static pressure is good. Capacitor is good. Heat strips are good. Blower and evap coil clean. Basement is 17 years old. Has r22 Freon. Safety switches working. Evap coil clean but blower wheel dirty. Capacitor is also weak. Static pressure is good.