One or more heater & AC (HVAC) temperature and/or air delivery mode door actuator may fail, resulting in improper temperature or air delivery. If this occurs, fault code(s) should be stored in the HVAC control module which should assist in diagnoses.
Improper HVAC Temperature and/or Air Delivery Due to Failed Mode Door Actuator on Chevrolet Blazer
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Heater continually blows heat,wont change setting to defrost or anything else.Ive tried 3 diffe...
My heat/AC will only come through my vents no matter where the selector knob is positioned. It's getting cold and I need to be able to defrost my widows. What would cause this and how do I fix it?
Air flow from the vent is the same regardless of the setting. Little or no air on the floor.