The answer to 'air conditioner freezing up' is that a frozen air conditioner is a common issue caused by a variety of factors, including low refrigerant levels, a dirty air filter, or a problem with the airflow. When an AC unit freezes up, it can no longer effectively cool your home and may even cause further damage if left unaddressed.
Some of the most common symptoms of a frozen AC unit include poor cooling performance, ice buildup on the coils or lines, and the unit running constantly without reaching the desired temperature. To resolve the issue, you'll need to identify and address the underlying cause, which could involve recharging the refrigerant, cleaning the air filter, or addressing a problem with the airflow.