This has likely been asked in many other posts, There should be a reasonable way to isolate and fix the real blend door, I'm looking for suggestions.
The factory actuators seem fine I swapped the blend actuator with the zone actuator, the zone worked fine where it was but when swapped into the blend position there was no change and it go right to stuck on full cold. I can swap them and no matter what I do the blend goes to full cold. I bought a new actuator and installed it on the bend door and then it went to full hot.
I've tried to recalibrate by disconnecting the battery for about 5 minutes and shorted +- together then hooked back up and started the engine and let it warm up and there was no change in operation to the blend door. I disconnected the rear controller and plugged it back in and the blend door stays pegged cold with the OEM actuator or hot with the new actuator. I even bought a spare rear controller and there was no change.
What am I doing wrong or what is wrong, any ideas? I'm pretty clear that I'm missing something
The factory actuators seem fine I swapped the blend actuator with the zone actuator, the zone worked fine where it was but when swapped into the blend position there was no change and it go right to stuck on full cold. I can swap them and no matter what I do the blend goes to full cold. I bought a new actuator and installed it on the bend door and then it went to full hot.
I've tried to recalibrate by disconnecting the battery for about 5 minutes and shorted +- together then hooked back up and started the engine and let it warm up and there was no change in operation to the blend door. I disconnected the rear controller and plugged it back in and the blend door stays pegged cold with the OEM actuator or hot with the new actuator. I even bought a spare rear controller and there was no change.
What am I doing wrong or what is wrong, any ideas? I'm pretty clear that I'm missing something