What to do when the car AC has no airflow in gears 1-3 but works in gear 4?
1 Answers
When the car AC has no airflow in gears 1-3 but works in gear 4, it is usually caused by a damaged blower motor resistor, which needs to be replaced promptly to resolve the issue. Below are some relevant tips for car AC maintenance: 1. Correctly adjust the AC vent direction: When using the cooling function, point the vents upward; when using the heating function, point them downward, as cold air sinks and warm air rises. 2. Avoid prolonged AC usage: Each use of the AC should not be too long. Once the interior temperature reaches a comfortable level, you can turn off the AC and turn it back on after some time.