Q: Heater/air won't turn on

asked by on

The blower is good we tested it, the resistor is also good. But it won't come on on any setting. Any advice?

My car has 150000 miles.
My car has an automatic transmission.

Try checking the relay. Sometimes when the relay is not getting a good connection this can happen. I would also check all of the fuses. Sometimes when they have too heavy of a load they will blow which will in turn cause the AC to not work. If you’re unable to pinpoint the issue with your A/C, feel free to contact a certified technician, like one from YourMechanic. They’ll be able to come to your home to diagnose

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Heater/air won't turn on

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: Have replaced power steering pump three times. Works well for about a day and then stops. There is no leaks.

Hi there. The issue is not the pump. The pump will fail if the power steering control valve sticks and stops working. The power steering control valve is located in the rack and pinion steering system. If you need further...

Q: AC stops working when idling

It is possible that your compressor clutch is producing more drag than usual, causing the near stall at idle. When the engine RPM is raised, the belt rotates faster, forcing the compressor to spin. It is also possible that...

Q: Valve body solenoids

Hi there. Once a solenoid has been installed in a vehicle, it is linked with the ECU of that particular vehicle. So, in this case, the mechanics you've spoken to would be correct. The best solution here is to purchase...

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...
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 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.