Q: Q: Heater broken

asked by on

The heater isn't blowing hot air.

The heater is connected to the air-conditioner by a blend door that moves inside the dash. Depending on where it is located determines whether the air is hot or cold. This blend door is a mechanical component that can break or jam up. If it were to get stuck in the cold position the vents would never blow truly warm or hot air. Also, if the coolant is low in the cooling system or the vehicle never has time to heat up the vehicle wont blow hot air either. A diagnostic inspection should be performed on the heating/air conditioning system by a qualified technician in order to get to the true source of your concern. 

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. Q: Heater broken

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: Q: truck cranks but wont start

Verify that the fuel pump is getting power when you crank the engine. You should have 12 volts at the connector. If not, then the fuel pump circuit has to be diagnosed. Start with the basics. Make sure fuses are...

Q: Can't turn off antitheft system

If the anti-theft light is on then the vehicle is not going to start. You may have a defective code key. If you have another key then I would suggest you try it to see if the problem goes away....

Q: I hooked jumper cables up backwards now my truck won't fire off without spraying starter fluid

Determine if the fuel pump is actually running. The fuel pump should run momentarily at key on to pressurize the system. If it isn't running, you have an electrical problem. If the pump runs momentarily as is required at key...

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.