The last owners of our house installed a Master Flow attic fan, but the thermostat was so deep into the adjacent rafters (and underneath is the ceiling of the attic which was put in after). In other words, we had no access to the controls, and in the summer, unlike what the owners said, the fan never turned on.
I reached up and over and then down from the hole leading up to the fan, following the cord down, and felt the box. Then, I felt something else...ouch! I little current, confirming the electricity was running. Recently, a handyman cut a hole by the thermostat, and put in an access box. Now we can see it. Well, the Master Flow thermostat looks quite old, the dial is very much in recessed in the box (you can turn it with a flat screwdriver, and the wires going into the box are partly exposed, meaning you can see the colors of the wires (not the metal wire themselves) coming out of a main shaft before entering the box.
Should I just wait for the summer and try to adjust the thermostat, or should I have this replaced, does it sound dangerous, and how will I ever know in winter if the fan actually works?
- posted 6 years ago