INFINITI QX80 AC not working and blowing hot air after line replacement on INFINITI QX80

Some INFINITI QX80 owners report experiencing issues with their AC system blowing hot air after a line replacement. These problems may arise from the need to recalibrate the blend door actuator, which can affect the overall AC functionality. Additionally, common causes for the AC not working include refrigerant leaks, electrical climate control issues, or problems with the air conditioning compressor. In cases where the compressor is operational but cold air is still not produced, it could indicate a malfunctioning heater control box, which may incur repair costs around $2000. Furthermore, airflow issues related to a clogged cabin filter or vents can prevent proper cooling, and a dirty condenser may hinder heat release from the refrigerant. It is recommended that owners seek a professional inspection to accurately diagnose and resolve these AC issues to restore optimal performance.