I had a problem with my AC unit. Another company installed a motor but it just wasn't working correctly. They came out 3 times but couldn't figure out what the problem was. They wanted to fix something unrelated to the motor and charge me $800+.
I got in touch with Empire Mechanical at noon and a technician was at my house by 2. As soon as he saw the motor, he said it is spinning backwards. He switched the wires and now my AC is working great. The tech was very knowledgeable.