HVAC Repair near Ridgepass Ln. I arrived at the customer's house for an HVAC repair job. They reported that their air conditioning unit wasn't cooling properly. I started by checking the thermostat and found that it was functioning correctly. Then, I inspected the unit's air filter and found it was dirty, which was restricting the airflow. I replaced the filter and checked the evaporator coil, which was also dirty and required cleaning. After cleaning the coil, I checked the refrigerant levels and found them to be low. I topped up the refrigerant and checked the unit's pressure levels to ensure they were within the correct range. I then tested the system and confirmed that it was now cooling efficiently.