I have a breaker which is connected only to my Air Conditioning unit. It appears to have tripped at some point, based on the description on the panel for resetting the breaker. I don't think it was in a middle position, and I've tried pulling the handle to the off position and pushing the handle up to the on position, but it doesn't seem to reset. It looks to me like this red button should be going back down when I reset it, but it doesn't ever do that. I can't find more examples of this breaker (with the "red button") online.
It's not apparent that any electricity is reaching my AC unit; the motor doesn't run no matter the thermostat setting. The fuses appear fine. I think the red button must be telling me the breaker is tripped, but I'm not sure how to reset it.
What does the red button indicate? How do I reset it?