How to Fix No Airflow from the Passenger Side Air Conditioner?
1 Answers
No airflow from the passenger side air conditioner is usually caused by issues with the cabin air filter or the blower motor. Below are detailed descriptions of the problems: Cabin Air Filter Clogged: If the cabin air filter is clogged, the airflow will be restricted, resulting in no air coming out of the air conditioner. Therefore, if you notice that your car's air conditioner is not blowing air or the airflow has weakened, the first step is to check if the cabin air filter is dirty. Typically, after cleaning or replacing the filter, the airflow will return to normal. During inspection, you can remove the filter to see if the airflow increases. If it does, the filter is clogged; if there's no change, the issue lies elsewhere. Blower Motor Malfunction: The blower motor is a crucial component of the air conditioning system, responsible for circulating air inside the vehicle. When using the air conditioner at higher fan speeds, you may often hear a humming sound coming from under the passenger seat. This is the sound of the blower motor working—the higher the airflow demand, the faster the motor operates to draw in air. If the blower motor is damaged, it may fail to draw sufficient air or stop working altogether, preventing airflow from the air conditioner. To diagnose, set the fan speed to maximum and listen for the blower motor's sound. If it doesn't spin or spins too slowly, it indicates a malfunction, and the owner should visit a 4S shop or repair facility for servicing.
