An A/C unit tune-up should be unquestionably thorough, then during an A/C unit tune-up, all of the mechanical plus electrical components of the unit should be checked, tested, plus reviewed. I calibrate the temperature control plus I Clean the condenser coils. I get rid of all of the Dust, debris, plus dirt that might keep the unit from working properly. I also examine plus tighten all of the bolts plus electrical connections. When I send a contractor to an A/C tune-up, they are required to fill out a long check list of items. I do not want anyone to miss something that is unquestionably crucial. In fact, our A/C tune-up checklist includes 73 weird areas that need to be investigated. One of the items on the checklist is checking the freon plus refrigerant levels inside of the A/C machine. This is an crucial part of the process, because the freon plus the refrigerator are responsible for creating the cool air plus your air conditioner. I went to perform an A/C tune up Last yearand I told the client that the unit needed more freon. The client did not realize that the A/C unit needed special liquid to cool the air. I spent 15 or 20 hours trying to explain how the air conditioner works, however the client did not seem unquestionably interested in studying about the process. She finally provided up plus wrote me a check for the amount of the service plus the refrigerant. I would have continued to teach about the process, however I was particularly ecstatic to get out of there.