I have a payne heatind and a/c unit which is 1 1/2 years old. We bought it in 2010. The compreesor froze outside in 2012. We brought the motor back for replacement and fitted it into the unit. When we turned the system on the motor made a humming noise and the a/c did not work.
Any ideas?

My email is [email protected]

There are several things which could be wrong. The most common are incorrect wiring & bad capacitors.