Skip the auto shop - Our mechanics make house calls

Q: My AC is not turning on

asked by on

I checked the fuse and it's not blown, but no air comes out of the vents when I turn the ac on

My car has 116000 miles.
My car has an automatic transmission.

Hi there. It sounds like the blower resister could be at fault. First, check the fuses for this part and replace as necessary. Then, using a digital volt/ohm meter, check for battery voltage being supplied to the resistor, and then check for output voltage with the fan turned on via the control knob. If voltage is present coming into the resistor but not coming out, then the resistor may have an internal open circuit and need to be replaced. If voltage is present coming out and present at the blower connector, then the blower motor may have an internal open circuit and need to be replaced. I strongly suggest having a qualified technician, such as one from YourMechanic, perform an air vent inspection so you can avoid any unnecessary part replacements.

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!

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: Rear door not closing correctly

Hello. Assuming that the light control switch in the front is properly set, and you have followed the instructions in the owners manual, then the problem is likely the light switch in the door jam. This is a relatively common...

Q: Clutch or air conditioning work.

Hello. It is rare that a clutch is ever replaced on today's vehicles. On your Honda, the clutch it not a replaceable part. You should always replace the compressor as a unit to prevent further issues. Keep in mins that...

Q: Cost to replace thermostat

The thermostat on your car's engine is fairly accessible and so it looks like it's about a 1 hour job. Typically, a thermostat costs roughly $25. To get a precise, written quote if you would please input your year, make...

Related articles

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...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.