Q: Q: My AC will not blow air.

asked by on

My AC will not blow air through the vents, I can't hear the motor working either. The Climate control display does turn on and does display that the AC is on but it's just the air not flowing out of the vents. I replaced my AC system last summer, so it hasn't been that long since I've gotten it looked at. I tried running a diagnostic code with climate control by pressing auto and off buttons and the only thing I get is one under dash. I don't know if it is the blow motor or if it is the blow motor resistor or something else.

My car has 200400 miles.
My car has an automatic transmission.

Hello, The blower moto resistor is what controls the speed of the motor rather than the power to the motor. This may be related to a faulty blower motor or blower motor relay. Occasionally, the blower motor itself will wear out or become faulty working intermittently as the brush contacts inside the motor wear out. The blower motor relay supplies power to this motor when you turn the switch to "on" that can sometimes fail. When this happens, you may notice that you will not feel anything blowing out of the vents at all. This may also cause the blower motor to work intermittently. I would suggest having an expert from YourMechanic come to your location to diagnose your vehicle’s blower motor system.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Q: My AC will not blow air.

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: How can I tell if the water pump has been replaced as the previous owner claimed?

Hi, thanks for your question. The best thing to get when purchasing a car are service records. If the seller doesn't have them in hand, you can go to the shop that did the work and they will have records...

Q: Car only runs 10 minutes before overheating - 1994 Acura Vigor

A head gasket can fail in a few ways and yes one will leak oil into the cooling system. A technician can check coolant flow with a temperature gun by taking temperatures at opposite ends of the hoses and engine...

Q: Q: Transmission slipping

Hello. This is a common problem with Acura transmissions that have V6 motors. The transmission would need to be rebuilt or replaced entirely in order to fix the problem. There are recalls from the dealer about transmission problems in these...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...