- The air conditioner cools your home effectively and efficiently.
- There is no frosting or icing on the evaporator coil.
- The air conditioner runs for a normal amount of time.
- There are no unusual noises coming from the air conditioner.
- Your monthly energy bills are the same or lower than usual.
- The airflow from the vents is strong.
- The system cycles on and off normally, without short-cycling.
- The air conditioner maintains a consistent temperature.
- The compressor sounds normal and is not laboring.
- The low side and high-pressure valves on the refrigerant lines, when the compressor kicks on the low side should begin sweating/fogging and the high side should be hot to the touch.
If you've noticed any of these issues, it's likely that your air conditioner needs to be recharged with refrigerant. Here are some steps you can take to troubleshoot the problem:
1. Check the air filter and make sure it's clean. A dirty air filter can restrict airflow and cause the evaporator coil to freeze.
2. Make sure the vents are open and not blocked by furniture or other objects.
3. Turn the air conditioner off and on again. This may solve the problem if it's a temporary glitch.
4. If the problem persists, you may need to call a qualified HVAC technician to diagnose the problem and recharge the air conditioner with refrigerant.