After noticing that my driver side blend door actuator (the one that controls air direction - floor, front, defrost) had stripped gears, I installed a new actuator. I plugged it into the wiring harness and performed the re-calibration procedure (pulling and replacing the fuse, turning the electricity on and off, etc.) After I recalibrated it, there's a new problem. When I turn the engine on, the actuator cycles through the range of motion before stopping on defrost. It won't respond to A/C head unit controls. I've replaced a few BDAs before and never seen this happen. The A/C head unit was replaced with an AC Delco OEM part just a few months ago. Everything was good before the recalibration. Anyone seen this before or have any idea how to fix this? Thanks!