2006 Chevrolet Equinox-Blend Door Broken

CWood: The heat blend door actuator is traveling too far and broke the spline end off the door. I have replaced the door and the actuator, but the new actuator travels the same distance. Would this be a problem with the position control potentiometer itself, or something else?

Sparky: I would start with recalibrating the new actuator. The following is from GM service information. It does not state whether to begin with the key on or off. I would try it first with the key off and see if it responds.

Important:  Any time an actuator or the HVAC control module is replaced, the HVAC control module must be calibrated to ensure proper air distribution.

  1. Calibrate the actuators by simultaneously pushing the A/C and RECIRC buttons on the HVAC control module three times each, within two seconds of initial push.
    • The A/C and RECIRC button LED’s will flash while this calibration is taking place.
    • The calibration will take anywhere between 10 to 30 seconds depending on battery voltage.
    • The LEDs will quit flashing when the calibration is complete.
  2. Cycle the ignition and verify proper operation.

CWood: Thanks Sparky!! I’ll let you know how it goes!

CWood: The a/c control reset worked perfectly!!

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