Condenser Fan Motor Running Backwards. The wiring is correct as i took pics of everything before i took it out. First, let’s go over the basic parts of an electric air conditioning motor.

Outside condenser fan turning backwards intermittent when a/c starts. Either one of them must be on the fan port and the other on the common port, along with one wire from the condenser. I was checking out a unit that didn't seem to be keeping the office space cool and it didn't take long to realize that the outdoor fan motor was in fact runn.