HVAC Questions? Ask an HVAC Expert for Answers ASAP
Hello.Sorry you are having problems. My name is XXXXX XXXXX I will do my best to help.Please wait to leave rating until we are finished. You will need an ecm tester as these wires are DC voltage.The motor will have 120V constant on heavy power wires, but control board sends DC signals through these small wires to tell motor controller what speed to run.Your issue can be either the circuit board. the controller on end of motor or the motor itself. The tester narrows it down to board or controller/motor. If it is the controller on end of motor, it is just about same cost to replace motor with controller complete as it is to buy just the bell or just the motor.Here is a link showing the tester required.
i have the tester please tell what dc voltage on what wire and do i read the wire side of motor or board connector side