How can I check the refrigerant level in my AC system?

To check the refrigerant level in your AC system, you will need a pressure gauge. Attach the gauge to the service valve on the AC unit and compare the reading to the manufacturer's recommended pressure levels. If the pressure is too low, it may indicate a refrigerant leak. If you are unsure how to do this, it is best to contact a professional HVAC technician for assistance.