What Causes a Car Air Conditioner to Not Cool Properly?

[VonManuel]

Here are the reasons why a car air conditioner may not cool properly: 1. Insufficient refrigerant: Car air conditioners typically require refrigerant replenishment every 2-3 years, with most losses occurring due to leaks. 2. Damaged air blend door: The blend door actuator, usually located in the lower center of the dashboard, serves as the main switch for air vents. Its failure means the switch is broken, resulting in cool air only escaping through gaps with minimal cooling effect. Additional information on reasons for poor car AC cooling: 1. Dirty condenser: Cleaning the radiator and condenser primarily improves heat dissipation. Always use compressed air first before water cleaning to avoid adverse effects like reduced cooling and increased fuel consumption. 2. Worn or loose belt: Dealerships usually recommend belt replacement during maintenance. Unreplaced belts may slip during operation, causing breakage, noise, loss of power assistance, and poor AC performance. 3. Moisture in the system: The AC system contains a receiver-drier that absorbs moisture from refrigerant, preventing reduced cooling capacity due to excessive moisture.