What are the reasons for the lack of airflow in the first and second gears of a car's air conditioning?
2 Answers
Car air conditioning may not produce airflow in the first and second gears due to abnormal working conditions of the air conditioning or a faulty fan capacitor, among other reasons. Here is a detailed introduction to car air conditioning: 1. Overview: The car air conditioning device (air-conditioning-device), commonly referred to as car air conditioning, is used to adjust and control the temperature, humidity, air cleanliness, and airflow within the car cabin to optimal conditions. 2. Function: It provides a comfortable riding environment for the driver, reducing travel fatigue; it creates good working conditions for the driver, ensuring driving safety. The car air conditioning system typically includes refrigeration devices, heating devices, and ventilation devices.
The issue you're encountering is most likely due to a faulty blower motor resistor, as it specifically controls the airflow at low speeds. The first and second gears rely on it to reduce voltage. Prolonged operation leading to heat-induced aging of the resistor, or aging of the fan motor itself, can result in no airflow at low speeds, while the third gear might still function normally. Don't overlook the fuses—check if any air conditioning-related fuses in the fuse box are blown. Loose or short-circuited wiring connections could also be the culprit. For inspection, some parts may need to be disassembled, so it's advisable to visit a professional repair shop as soon as possible. Replacing the resistor isn't expensive but can be time-consuming. Delaying repairs may affect the overall performance of the air conditioning, making summer drives unbearably hot. Regular maintenance, such as cleaning the air filter to reduce dust accumulation, can extend the resistor's lifespan and prevent similar issues.
