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Why is My AC Running But Not Blowing Air

Auto ac repair

Because of climate change sometimes it is unexpected for the surrounding temperature to increase abruptly in certain areas, a warm fall day then becomes wet and humid the next day and for this reason, you expect that your car air-conditioning must be properly working, but the most frustrating is when you find your car air conditioning not blowing air even though it was running.
It’s a common problem with the car air conditioning not to blow air at any fan setting, as common as it was, fixing the problem is easy without you going into the shop for repair. It’s not the air conditioning system that has the problem.

The reason why my AC is running but not blowing air at all at any fan setting.

(1) Blown blower fuse.
(2) Failed blower motor.

AC Car troubleshooting

Blower not working
First off, we need to clear something up. The "blower" and the "fan" are the same things. We used the word "fan" in the problem description because it's a more familiar term. The official name for it (as used by mechanics) is "blower". Now then, it should be obvious that if the air isn't blowing from the vents at any fan/blower setting, the blower must not be working. Two common causes of this are: blown fuse or failed motor blower

If your car’s AC running but not blowing air another reason is there is a problem with the fan, car this day are equipped with a multi-speed fan, the fan blows cold air thru the duct out into the vents to cool the passenger cabin, fan with multi-speed is controlled through a module that is controlled by the fan switch, the module becomes hot when powering the fan and this is the reason the module burns out and as a result, the fan will stop working. 

Because the module gets hot the remedy of the car manufacturer is to place the module into the ventilation duct so that the module remains cool. It is easy to replace such part any auto parts have replacement parts of this kind. 

Another reason why the ac is running but not blowing air is because of a clogged cabin air filter. The purpose of the cabin air filter is to filter the air coming from the outside, of course, if the filter is clogged it will restrict the air to circulate through the car ventilation system. Make sure that the cabin filter is clean and free of contaminants, have it cleaned or replace if necessary. 

Blown Fuse - Like most electrical devices, the blower has a fuse as part of its circuit. This fuse can "pop" for one reason or another. This will immediately cause the blower to stop working.

Auto ac repair.

Failed Blower Motor - The blower motor is the heart of the blower and, as one might guess, it drives the blower wheel which in turn, blows air. Of course then, if the blower motor has failed, the blower won't work. Another possible, but rare, cause of an inoperative blower is a faulty dashboard fan/blower switch.

Auto ac repair

What to do?
First off, locate the car fuse box. Refer to the owner's manual if you aren't sure where it's located. 

Once you've found the box, find the particular fuse that is associated with the blower (it should be labeled either "Heater" or "A/C"). Examine this fuse to see if it has blown. If so, replace it with a fuse that has an identical amperage rating (refer to owner's manual for this information). If the blower works but then fails again, there is likely a short circuit somewhere. You'll need professional assistance in this case. 

If the fuse was intact, you likely have a failed blower motor or a problem with the switch's wiring, this will cause the AC not to blow air even though it is running. Take the car to a qualified mechanic for inspection and repair. Try to find a mechanic that specializes in A/C and heater repair. (See also Air Conditioner Not Blowing Cold Air But Running )

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