Hello. I am new here. I am trying to figure out something in my attic. This mysterious black box appears to be connected to my attic fan, but it doesn't seem to actually affect anything when I twist the knob. Can anyone help identify it?
Thanks in advance!
Hiding in the shadow of the knob is the word MINUTES. I didn't realize it was so hard to see until now.
The issue I ultimately want to solve is that my attic fan runs 24/7, even in the dead of winter. It didn't used to, it used to only run when it was hot. I am not going to attempt any wiring work myself. I am just trying to figure out what is up there.
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