Upon arrival customer stated that the outdoor fan had stopped spinning. He said that he had someone come work on the system in the past and the fan had done the same thing. The person was able to get the fan to start by spinning the fan blade. I also tested this method today and was able to get the fan to start. However, this is a sign of the bearings in the fan motor failing. There is also a bad sound coming from the fan motor indicating failing bearings. The customer also informed me that the unit froze up during the last cold period. I tested defrost and was unable to get the system to go into defrost. Lastly, the system is quite dirty and needs to be cleaned. I highly recommend covering this system under the Energy Savings Agreement to receive 15% off of any needed repairs as well has have routine maintenance and cleaning performed. To have the system run properly, the condenser fan motor and defrost control board will need to be replaced. Customer approved repairs. Nee