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Why does the air conditioner suddenly stop blowing air?

2 Answers

Charlotte

07/29/25 8:12am

The reasons for the air conditioner suddenly stopping blowing air vary depending on the situation: 1. If the air conditioner only heats but does not blow air, you need to check whether the fan wheel is stuck. If it operates normally, then check the temperature probe and pipe temperature probe. If the pipe temperature is too low, the air conditioner will not blow air; 2. If the air conditioner does not blow air whether in cooling or heating mode, similarly check the fan wheel first, then determine whether the motor is burnt out, and repair it promptly. The car air conditioner refers to the air conditioning device installed in the car, which can cool, heat, ventilate, and purify the air inside the cabin, providing a comfortable riding environment for passengers, reducing driver fatigue, and improving driving safety.

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DiJoseph

08/12/25 11:24am

There are many possible reasons why the air conditioning suddenly stops blowing air. It could be a problem with the fan motor, which drives the airflow—if it fails, the fan stops spinning. Another common issue is a blown fuse; I've encountered this many times. The fuse in the AC circuit burns out when the current is too high, preventing further damage. You can first pop the hood and check the relevant fuse in the fuse box, then try replacing it. If that doesn’t work, a blocked air duct or clogged filter might be the culprit, as accumulated dust can obstruct airflow. Additionally, faults in the AC switch or control system are common, such as poor button contact or a malfunctioning module. In short, if initial checks don’t help, it’s safer to visit a repair shop and let professionals handle it—better than suffering in a hot car. Regularly cleaning the filter can prevent such issues.

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