Empower Your HVAC System The Essential Blend Door Handbook

A-Premium HVAC Blend Door Actuator Compatible with Buick, Chevy, Cadillac, GMC, Hummer, Isuzu, Olds & Pontiac Vehicles HVAC Heater Blend Air Actuator. In this comprehensive guide, we'll explore the importance of blend door actuator calibration and provide detailed instructions on how to reset it effectively. A blend door actuator is a small motor that controls the temperature blend door inside the HVAC (heating, ventilation, and air conditioning) ... This step-by-step write up describes replacement of the blend door actuator only, since that's the one that failed in my case. The actuator motor sits atop the HVAC unit behind the passenger side airbag and glovebox. Can only be accessed from the top so dash must pivot. My HVAC got stuck a couple times with full hot blowing out of the driver's vents and cool air coming out of the passenger vents. 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. 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. The blend door actuator replacement did not resolve the issue, but our Mercury Mechanic will be able to help you further with this problem.