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 Posted: Fri Apr 13th, 2018 06:08 pm
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David Mahler
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Hello,

    I am restoring an Emerson 24668. This is the first fan I have done that has three wires connecting to the stator, the wires were not attached when I got the fan. My question is does it matter in which order the wires are connected? If so how do I determine which wire connects to what?

Thanks for any help in this matter. 

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 Posted: Sat Apr 14th, 2018 04:09 am
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Chris A. Campbell
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Yes there is a particular order. Under info or search look for a 24666 diagram which should work. It is the 12" version of your 16" fan

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 Posted: Sat Apr 14th, 2018 04:23 am
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Russ Huber
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.

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 Posted: Sun Apr 15th, 2018 08:18 pm
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Tom Newcity
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David,


Hopefully you have and know how to use a multimeter.  Just follow the hookup instructions that Russ has posted.  Your fan is pre 29646, so follow the note at the end of the instructions.  Good luck.

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 Posted: Mon Apr 16th, 2018 01:28 am
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David Mahler
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Thank you for all of your help. I have it running the only problem is it will only run at one speed, no matter the switch setting. Draws 180 watts at each setting. 

   I guess that means the speed controller is broken, will it hurt anything to just let it run as it is?

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 Posted: Mon Apr 16th, 2018 12:50 pm
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Tom Newcity
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It’s very possible that the speed control is ok and the fan is operating as designed.  But it would be a good idea to double check your hook up.  Running it hooked up incorrectly can harm the stator.
The only notes I have that are close to the 24668 are on a 27668.  And the 27668 low, mid, and hi amps were 2.01, 2.02, and 2.04.  I don’t have the rpms, but that would not have been much difference in speed.  

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 Posted: Mon Apr 16th, 2018 11:59 pm
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David Mahler
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Here are my readings off the stator 79.8, 10 and 76.8. The reading off the switch : 1 and 2= .6, 1 and 3= 1.4 and 3 and 2= 1.

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 Posted: Tue Apr 17th, 2018 04:20 pm
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Tom Newcity
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David Mahler wrote: Here are my readings off the stator 79.8, 10 and 76.8. The reading off the switch : 1 and 2= .6, 1 and 3= 1.4 and 3 and 2= 1.David,

Your three stator readings should consist of the run winding, the start winding, and the sum of the two. 

Your speed control readings are very low.  Measure from 1 to 2, 2 to 3, and then 3 to the loose wire on the top.  You'll be reading three different coils.  Also check the resistance of your test leads by touching them together.  I'll check my notes on the 27668 speed control. 

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