Q: The heater wont turn on, on any setting.

asked by on

I took off the cover dash cover to access the blower motor, when i tap on it, it will kick on for a little bit but sounds like it is catching on something. I'm not sure if it could be some A/C build up or if one of the brushes is out of whack or what it could be. I have checked all fuses and they are good.

My car has 100000 miles.
My car has an automatic transmission.

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 bruch 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. I would suggest having an expert from YourMechanic come to your location to diagnose your vehicle’s blower motor system.

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. The heater wont turn on, on any setting.

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: P0446 Check engine code

Hi there. The system will set the message if it attempts a self test and finds atmospheric pressure in the tank. The gas cap may not be the concern here as this message is directly related to a large leak...

Q: Heater making loud rumbling noise when on high 1996 Saturn SL2

Hi there - I believe the heater fan motor bearings are shot, and that's the noise you hear - increasing noise level as fan speed goes up. These bearings are generally not serviceable, and the fan motor should be replaced....

Q: Car won't blow any hot or cold air

This may be related to a faulty blower motor or blower motor relay. The blower motor is a unit inside your vent system that blows warm air from the heater core to the vents when the heater is on or...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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...