https://www.jonyautoparts.com/car-cooling-fan/
1. Start the engine to warm up first, and wait for the engine water temperature pointer to reach the middle position.
2. Turn on the air conditioner, without pressing the A/C button, adjust to the warm air mode, generally the red area.
3. At the same time, set the air circulation to external circulation, so that the cold air in the car is discharged out of the car first.
4. After waiting for 23 minutes, set the air circulation to internal circulation.
https://www.jonyautoparts.com/car-cooling-fan/
