I moved into a house about a year ago. I noticed over the summer that the
upstairs would get pretty hot (we live in Alabama). Well I finally
noticed we had two electric attic fans. I've been researching them over
the fall and winter months and remembered back to the house I grew up in.
We had an electric attic fan but there was a thermostat in the upstairs
part of the house.
I knew we didn't have a thermostat in our new house but I double checked
instead. I was right, there is no thermostat. So I was wondering how in
the world would these fans ever turn on?
I have two light switches at the top of the stairs but both control the
I would like to get these fans working before summer, what should I do?
*The small attic ventilator fans normally have their own attached
thermostat. Look closely where the feed wire enters and you should see a
small knob (Smaller than a pencil) that gets rotated with a screwdriver.
There should also be a small temperature chart around it.
On Tue, 08 Mar 2011 20:04:02 +0000,
Datwood2009_at_gmail_dot firstname.lastname@example.org (Datwood2009) wrote:
Is the fan running now? If not, how come?
If the switch is off, turn it on.
Is the fan running now? If not, it probably has a thermostat. If
yes, maybe it has a broken thermostat.
My roof fan has a thermostat connected to it, about a foot from the
fan. I also installed two switches in the second floor hall. One to
turn the fan on when the thermostat would turn it off, and one to turn
it off when the stat would turn it on. I don't take hot showers so I
never use the first, but I use the second in the spring and the fall
with the hope that the hot attic will warm my house a bit.
For a while it seemed to be on all the time, and I thought I needed a
thermostat. The cheapest way to get one seemed to be to buy a whole
new fan, which would come with a stat and fan with a motor. The motors
have broken for me every 3 to 12 years, so if I get an extra one, I'll
surely use it eventually. But I think I was wrong. Later it went on
and off like it used to.
The ones I've seen have the thermostat on it's own small box a
couple feet back from the fan. That's where they should be,
in the attic so they respond to the attic temp, not the temp of
the upstairs house. Just start tracing back the wiring from
the fan, which in the typical attic, should not be hard to do.
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