Why is my air conditioner line frozen and how can I fix it?

Your air conditioner line may be frozen due to restricted airflow or low refrigerant levels. To fix it, you can start by turning off the unit to allow it to thaw. Check and clean the air filters, vents, and coils to ensure proper airflow. If the issue persists, you may need to contact a professional HVAC technician to inspect and recharge the refrigerant levels.