Skip the auto shop - Our mechanics make house calls

Q: Blower motor not working no heat no ac control goes up but nothing coming out of vents

asked by on

Blower motor not working no heat no ac coming out of vents control goes up and down but nothing coming out of vents what could it be

My car has 300000 miles.
My car has an automatic transmission.

Hi there. It sounds like it could be a faulty resistor or blower motor. Check the fuses/relays and replace as necessary. Check for voltage the blower motor; check that the voltage increases with an increase in the fan speed selector. If this is operating normally, then the blower motor is at fault. If there is no voltage, then suspect the resistor and check for voltage available at the resistor. If voltage is available, then the resistor is faulty. I suggest having a qualified technician perform an inspection to avoid replacing unnecessary parts. Your Mechanic has several available technicians that can assist you with a blower motor is not working inspection.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 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. Blower motor not working no heat no ac control goes up but nothing coming out of vents

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: I just replaced my crank and cam sensor and car still dont start

You should check to see if your vehicle has jumped timing. Have a mechanic verify that the camshaft timing did not jump after scanning and looking at the crankshaft sensor data to verify it is giving a signal. If it...

Q: What can you do to see how healthy a transmission is / how long it'll last? How much do these tests tell you?

Some of the tests that could be performed to determine if a transmission is in good condition would be to first check the fluid level as you mentioned. If the fluid level is low or the condition of the fluid...

Q: Locating car gos

Hello. Keep in mind that most tracking devices are usually put in places that are quickly and easily accessible by the person installing them for a quick retrieval. Pay special attention to the places around the edge of your car....

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...