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Heater blend actuator


New member
Buick Ownership
Enclave and century
There was clicking under my dash and the vents were stuck on defrost t so I bought a new actuator I decided to plug it in before install to see if it would move
It moved as far as it would go in one direction and would not respond after that
I figured it had gone out of its range
I saw a video on how to reset it but couldn’t find documents on the pin out so I opened up the actuator and spun the motor by hand until it was at the midpoint
I then installed it, plugged it in and started the car
It immediately started moving in the other direction and is stuck on the vents with no response
Is there a trick to this
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