Hey Jon, thanks for sharing. I'm having problems with my lock actuator as well. Whenever I hit the unlock button, there is a loud grinding/buzzing sound, like the actuator is trying to turn the lock further than it's supposed to go. I got in there and tried to tinker with it, but had no luck. I wasn't able to fully pry the metal casing apart to look inside, like the last few pictures you showed. Any advice in whether this might be a fixable problem or should I just bite the $300+ bullet and order a new actuator?