Why is my Air Conditioner Freezing Up?

1. Insufficient amounts of refrigerant: If the refrigerant level in your air conditioner is insufficient, the evaporator coil may get too cold and freeze.

This is one of the most common causes of evaporator coil freezing. This might be the result of an erroneous charge during installation or a leak in the line that contains the refrigerant.

2. Filters for the air that are unclean If the air filter is dirty, it might impede the passage of air over the evaporator coil, which can cause the coil to get too cold and freeze.

3. Air vents that have been blocked or closed off If air vents have been blocked or closed off, it may create a restriction in airflow, which in turn can cause the evaporator coil to freeze.

4. Defective thermostat: If your air conditioner has a defective thermostat, it may run continually. This, in turn, may cause the evaporator coil to get excessively cold and freeze up.

5. filthy evaporator coil: A filthy evaporator coil may limit airflow, which can result in the coil being too cold and freezing up. This can also cause the unit to malfunction.

6. Faulty blower fan A blower fan that isn't working properly might result in inadequate airflow over the evaporator coil, which can cause the coil to get too cold and freeze up.

Before performing any kind of repair on your air conditioner, it is essential to switch it off and give it some time to defrost if it starts to freeze up. After the ice has melted, you will be able to inspect the thermostat, air vents, and air filters to confirm that they are in good operating order. If you are unable to tell what caused the issue, the best course of action is to get in touch with a qualified HVAC technician who can diagnose and fix the problem for you.