Believe it or not, many of those cheapie roof fans (~$100.00 or less) have
oilers on the motor. Funny since almost *all* other HVAC motors which are
much easier to access have permanent lubrication.
Anyway, it could have burned up completely, or it may sitting up there
cycling on overload. I would physically disconnect the wiring or repair it
right away if I were you.
I thought I would turn the thermostat up enough so that it won't try
to cut on. There is a small metal box with a screw, but no indication
of which direction is higher/lower. It isn't warm enough yet for the
other one to come on. Is there a standard way (clockwise,
counterclockwise) that these things work?
With the GAF Master gable power vents I've dealt with, lower temp (goes
on sooner) is counterclockwise. And of those I've dealt with 105 is the
Your type, model and brand probably varies. Google it for the instruction
On Thu, 28 May 2009 04:50:25 -0500, email@example.com wrote:
I have an AC/DC meter, but I don't know how to test AC. What is the
procedure for that?
Anyhow, it seemed to be hot enough for the fan that was working last
year to come on, but it would not come on. So I switched off the
breaker and disconnected the white and black wires going to the fan
and taped them up with electrical tape (or twisted the plastic cover
Mine quit working. I unwired it and when I got a new roof had the
roofer put in a passive vent.
Next door neighbors caught fire one night. He was fortunate to have
another neighbor coming home late spot the flames and saving the house
from burning down or worse.
Respectfully suggest DO NOT IGNORE the situation described.
Like there are advantages with most devices there are disadvantages.
Which in this case is something of a chance of a fire hazard?
At very least find out which circuit or fuse in your panel feeds that
circuit the fans are on and turn it off until the problem has been
diagnosed and corrected.
As an example; our bathroom (a much smaller fan) was grinding and
jammed up due to lint build up and needing lubrication.
Fortunately it has a separate switch; but one day before I got a
chance to remove the fan and clean and and lubricate the motor,
somebody, not knowing the problem, left it switched on!
That small fan, not turning, got quite warm. Not hot enough to catch
fire but QUITE warm. Up in the bathroom ceiling.
It has now been cleaned, had to put the fan blade through the
dishwasher to get the grunge off it, re-lubricated and installed. It
still runs slightly rough and one of these days I will have to find a
replacement motor or install new bearings.
So; with presumably a bigger (and potentially hotter and out sight
motor), please do not ignore! Good luck.
Is anyone looking after the still in 'coochee. I stopped by with my
wife and daughter a few years ago and found the lock had been jimmied
and told the police.
Are you still playing tournament chess.
OK to stay on topic I repaired a couple of power vents but I have been
known to do some southern engineering. I replaced one blown motor with
a fairly large muffin fan and another after I trashed it I realized
the roller bearings that had siezed were the exact same ones used in
rollerblades. Replacing the bearing would have been an easy fix. I
could have even gotten ceramic replacements.
BTW my telephome number is prime.
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