A/C Heater Blend Door Actuators

I’ve tried finding the locations of the
actuators and I’m not really sure how many
there are. Some say three some say two. I
really don’t know the difference between the
ones I read on. Which they are Blend, Mode,
and Recirculation. I have also read that there
are Temperature, Air, and Floor as well. So
my issue is with my car the battery dies daily
sometimes hourly. I have a clicking/ knocking
noise when the car is on and off which makes
me think that one of the actuators are still
pulling power from the battery causing it to
drain. The noise comes from under my dash
by my glove box. You can hear it pretty well
when you’re standing outside of the vehicle.
The noise will randomly start even after hours
of the car being turned off. I haven’t noticed
any changes with the heat or ac but i haven’t
used the heat yet since it’s not cold. Now I
can’t even test it because my battery will not
hold a charge anymore. So I can’t even turn
my car on. Even with the battery dead it’s still
making that noise. My battery voltage is
7.40V so it has enough to turn some lights on
but they’re very dim. So I need to know how
many actuators there are where they’re
located what they’re called and how to tell
which one is bad. Also can I pull out a fuse
so it stops