The answer to 'air conditioner freezing up' is that a frozen air conditioner is a common problem caused by a variety of issues, including low refrigerant levels, a dirty air filter, or a blocked airflow. Symptoms include ice buildup on the coils, reduced airflow, and poor cooling performance. Solutions can include cleaning the air filter, clearing any blockages, and checking the refrigerant level.
If the issue persists or you're unsure of the cause, it's best to call a professional HVAC technician. They can properly diagnose the problem and make the necessary repairs to get your air conditioner working efficiently again.