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Fan control reversed

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Subject Author Date
Fan control reversed Duck 05-17-2007
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Posted by Steve on May 18, 2007, 8:09 am

> I've tried one that is labeled 0, 1, 2, 3, 4.
>
> 0 = off
> 1 = high
> 2 = slower
> 3 = slower still
> 4 = slowest
>
> I also tried a rotary type where as I rotate it clockwise out of the
> off position, it goes to high speed. As I continue to rotate it
> further, the fan runs slower.
>
> This runs contrary to every variable speed adjustment I've every seen
> for fans. I'm worried that there may me another issue (bad wiring,
> fan problem, etc.).

That's the way ceiling fans are made. I've never seen one that didn't work
this way. The pull chain on the fan body uses the same pattern. I don't
know why. It's always bothered me too.

Posted by N8N on May 18, 2007, 9:31 am
>
> > I've tried one that is labeled 0, 1, 2, 3, 4.
>
> > 0 = off
> > 1 = high
> > 2 = slower
> > 3 = slower still
> > 4 = slowest
>
> > I also tried a rotary type where as I rotate it clockwise out of the
> > off position, it goes to high speed. As I continue to rotate it
> > further, the fan runs slower.
>
> > This runs contrary to every variable speed adjustment I've every seen
> > for fans. I'm worried that there may me another issue (bad wiring,
> > fan problem, etc.).
>
> That's the way ceiling fans are made. I've never seen one that didn't work
> this way. The pull chain on the fan body uses the same pattern. I don't
> know why. It's always bothered me too.

I believe because the motor may not have enough torque on the lowest
speed setting to start the fan if you just switch it directly to the
lowest speed, but briefly passing through high speed will get the
blades spinning so the motor doesn't burn out.

nate


Posted by Steve on May 18, 2007, 10:01 pm
alt.home.repair:

>> alt.home.repair:
>>
>> > I've tried one that is labeled 0, 1, 2, 3, 4.
>>
>> > 0 = off
>> > 1 = high
>> > 2 = slower
>> > 3 = slower still
>> > 4 = slowest
>>
>> > I also tried a rotary type where as I rotate it clockwise out of
>> > the off position, it goes to high speed. As I continue to rotate
>> > it further, the fan runs slower.
>>
>> > This runs contrary to every variable speed adjustment I've every
>> > seen for fans. I'm worried that there may me another issue (bad
>> > wiring, fan problem, etc.).
>>
>> That's the way ceiling fans are made. I've never seen one that
>> didn't work this way. The pull chain on the fan body uses the same
>> pattern. I don't know why. It's always bothered me too.
>
> I believe because the motor may not have enough torque on the lowest
> speed setting to start the fan if you just switch it directly to the
> lowest speed, but briefly passing through high speed will get the
> blades spinning so the motor doesn't burn out.

That would surprise me. You can leave the fan set on Low, then turn it
on and off with the wall switch. I've done this with every fan I've ever
owned, and none of them have had a problem. Low is the right speed for
me most of the time.

I used to sell ceiling fans, and I was never trained to tell customers
to start them on high. Of course, that's no proof.

I can't tell you how many fans I've installed over the years (billions
and billions?), and I've never had a call-back because a fan burned out.
I HAVE, however, seen some that have worn out from old age and constant
use.
--
Steve B.
New Life Home Improvement

Posted by mm on May 18, 2007, 11:48 pm

>
>I can't tell you how many fans I've installed over the years (billions
>and billions?),

You may be confusing this with hamburgers eaten.

>and I've never had a call-back because a fan burned out.
>I HAVE, however, seen some that have worn out from old age and constant
>use.
>--
>Steve B.
>New Life Home Improvement


Posted by Mark Lloyd on May 18, 2007, 11:36 am

>I have a problem with a variable fan control being reversed. Off is
>off... but that's the only thing that's normal. The low setting
>results with the fan at max speed and the high setting causes the fan
>to run at it's lowest speed. I've tried three different fan controls.

Most I've seen would do that. Maybe some motors won't start in low.
--
Mark Lloyd
http://notstupid.laughingsquid.com

"Unlike biological evolution. 'intelligent design' is
not a genuine scientific theory and, therefore, has
no place in the curriculum of our nation's public
school classes." -- Ted Kennedy

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