Dodge Nitro heater box mode door actuator broken, only blows air from defrost on Dodge Nitro

Some Dodge Nitro owners report experiencing issues with their heating system due to a broken mode door actuator, which can result in air only blowing from the defrost vents. This problem occurs when the actuator, responsible for controlling airflow direction to the defroster, vents, or floor, becomes faulty and gets stuck in one position. As a result, airflow distribution within the vehicle is compromised. To resolve this issue, owners may need to replace the malfunctioning mode door actuator to restore proper functionality to the heating and ventilation system. It is crucial to ensure the actuator operates correctly for optimal airflow distribution.