![]() ![]() The second problem you may have on a hot day is having your ventilation system continue to only blow warm air or hot air even when the air conditioner is turned on. Why Is My AC Blower Not Blowing Cold Air? However, if this air filter isn’t changed, it can become clogged which can prevent full force air circulation through your car’s ventilation system. Cabin air filters serve as a filter to the outside air coming into your car to make sure it is clean and not filled with contaminants. Another reason why your car AC fan is not working could be due to your cabin air filter. Although each vehicle is a little bit different, these systems are often very similar so this instructional article may be helpful. Changing them can be as easy as removing two screws and one electrical connection and installing a new set of resistors or a new module which are available at your local parts store. Since these resistors get hot, many car manufacturers will install them into the ventilation ducts of your car to keep them cool. The blower motor resistor or blower module gets hot as it powers the fan so, often times, they can burn out causing certain speeds of the fan in your car to stop working, the fan can be stuck on one speed, only work on high speed, or not work on any settings. These different speeds are usually controlled through a set of resistors or a small computer module which is controlled by the fan switch. Most vehicles today have one multi-speed fan that blows air through a series of ducts and vents based on the driver’s selection in their climate control system. If your car’s AC isn’t blowing air, it could be a problem with your car’s fan. Car AC Not Blowing or Is Your Car AC Fan Not Working? ![]()
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