When I arrived the system turned on and was working. I noticed that the outdoor exhaust removal system was very loud and extremely hot to the touch, volt distribution system was charred and pitted and the voltage enhancement system was extremely rusted and wired in parallel with another for the exhaust removal system. I spoke with the client about my concerns and recommended the gold or above because of all that I seen wrong and they decided to go with the silver because I could take out the power protection and do a cleaning instead. I replaced the exhaust removal system, voltage distribution, voltage enhancement and cleaned the outdoor coil. After I made the repairs I tested the operation of the system and found it cooling properly. The system is about 18 years old but they are selling the house and were not interested in replacing at this time.