Hi, I have Carrier AC unit air handler model FK4CNFC002. The blower is not running. I found an intermittent thermostat fan line that was probably making the motor turn off and on a lot. The motor is a 1/2 HP GE with the markings CN02 2A17 on it. How do I verify if it is the motor or the attached control module that has the problem? Can the two parts be bought separately?