I am a professional HVAC technician who works for a company that specializes in air conditioning and heating maintenance. I recently completed a job at a residential home in Phoenix, Arizona. The homeowner had noticed that their air conditioner was not cooling their home as efficiently as it should be. I arrived at the home and performed a thorough inspection of the unit. I found that the air filter was dirty, which was causing the unit to work harder than it needed to. I cleaned the air filter and replaced it with a new one. I also checked the refrigerant levels and found that they were low. I added more refrigerant to the unit and tested it to ensure that it was working properly. I also checked the ductwork for any leaks and found that there were no leaks. I made sure that the thermostat was set to the correct temperature and that the unit was operating correctly. The homeowner was very pleased with the results and thanked me for my help.
