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
  1. Home
  2. Questions
  3. 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: resetting blend air actuator

The a/c door actuators do not need programming. I think what happened is the door was in the incorrect position when you put in the actuator. What you need to do is remove the actuator and leave the actuator electrical...

Q: How do I adjust the automatic temperature control (ATC)?

The automatic temperature control (ATC) system allows both the driver and the front seat passenger to have different temperature settings. The ATC panel has both a “MODE” and a “BLOWER” control knob; set both of these to “Auto.” Then, use...

Q: AC question - 2003 Chevrolet Tahoe

You may have a bad temperature blend door actuator for the left side vents. You should also have the complete system checked to make sure you are not low on refrigerant since the left side will be warmer than the...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...