Optimizing Airflow for Maximum Comfort The Essential Guide to Blend Doors

The right actuators behind the glove box rotates when the temp comes down on the drivers side temp knob, the left actuator doesn't rotate at all. An HVAC blend door actuator replacement involves testing all the motors managing the vents, removing the faulty parts and replacing them with new HVAC blend ... A blend door actuator is a small but mighty component of your car's climate control system. This tiny electric motor controls the blend door. A-Premium HVAC Blend Door Actuator Compatible with Buick, Chevy, Cadillac, GMC, Hummer, Isuzu, Olds & Pontiac Vehicles Post #3 here has a drawing. It (blend door)is #12. Yes change heat setting from hot to cold as you are looking at the actuator and the little ... The issue is likely in the temperature control knob. It's not sending the voltage it seems. Do all of the vent selectors work properly? There are 2 blend door actuators. You may have to change the other one. https://www.youtube.com/watch?v= ... If replacing a blend door actuator, check to make sure the blend door position is completely closed before installing the new blend door actuator. If the blend ... The fault is in the control head, not the actuator itself. If it's moving back and forth, grab the knob and push in on it, if it changes the movement of the ... Basically, the temperature blend door is the instrument responsible for sending air over the heater when you turn on the heat, and air over the ...