Why is one car air conditioning vent cold while the other is not?

1 Answers
LaMatteo
07/29/25 4:17pm
There are generally several reasons why one side of the car air conditioning is cold while the other is not: 1. Reason one: Air vent issue. One of the servo motors for the air vents is damaged, causing one side to not cool. Open the left and right vent directions and observe the servo motor controlling the airflow on the right side to see if the motor rotates accordingly. 2. Reason two: The air valve plate is stuck, hindering its rotation and affecting the airflow on one side. Check if the air door is malfunctioning. If the valve plate is stuck, it will obstruct its rotation, directly impacting the airflow effect. 3. Reason three: One side of the air conditioning duct is blocked. 4. Reason four: If it is an automatic air conditioning system, the dual-zone control function might be activated. Simply deactivate the dual-zone air conditioning function.
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