Skip the auto shop - Our mechanics make house calls

Q: AC line cold, no AC blowing in car; heat blows really hot, only all lines have been replaced and fuse checked good

asked by on

Could a dual climate control make blender flaps not open

My car has 100000 miles.

Hello. It is possible that your blend door actuator has failed. This is the part that controls your blend door. The blend door is responsible for blocking off the heater core when your A/C is on to prevent the hot air from coming through the vents. I would recommend having your blend door actuator inspected to determine if it is working or not. If the blend door actuator is not working I would recommend having it replaced by a qualified professional. A technician from YourMechanic can come to your home or office to diagnose why your AC is not working and make the necessary repairs.

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!
  • Home
  • Questions
  • AC line cold, no AC blowing in car; heat blows really hot, only all lines have been replaced and fuse checked good

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: Replaced blend door actuator

Your vehicle actually employs two temperature door actuators. There is one for the passengers side, that is located on the passengers side of the HVAC assembly, and another for the drivers side, that is located on the drivers side of...

Q: What happens if I don't replace my AC compressor in my car?

Good question. A lot of people ask the same question because sometimes you aren't able to spend so much money just to get your AC fixed or it's not that big of an issue for you. So, to answer your...

Q: Dual auto climate control

You will need to have the blend door actuator removed and the blend door rotated manually to see if it can change the temperature on the drivers side. If it cannot then the blend door is broken inside the heater...

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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...