What Causes Your Air Conditioner To Freeze Up?

Frozen air conditioners are one of the most common HVAC problems homeowners experience during hot weather. Ice buildup on refrigerant lines or evaporator coils can reduce cooling performance and eventually shut down your system completely.

Restricted airflow caused by dirty air filters, clogged evaporator coils, blocked vents, or failing blower motors is one of the leading causes of frozen AC systems.

Low refrigerant levels can also change system pressure and cause evaporator coils to freeze.

Another reason is having a AC unit that is too big for the home, this is because the unit is designed to cool a much bigger home so it runs much colder than what its supposed to which leads to it freezing up.

If you notice ice buildup, weak airflow, warm air from vents, or unusual noises, scheduling professional AC repair quickly can help prevent compressor damage and expensive HVAC repairs.