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Em 4660 Silver Swan troubleshooting  Rate Topic 
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 Posted: Mon Dec 3rd, 2018 11:24 am
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Neil King
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I recently acquired a 12", 3 speed type 4660 (I believe) Silver Swan. The fan runs fine but no noticeable difference in speeds. Being a little short on electrical knowledge I don't know how to troubleshoot this beauty as it has a different speed coil arrangement than I've seen before. Has 2 coils and a capacitor. I have attached a photo of the innards. Any help/suggestions would be greatly appreciated.

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 Posted: Mon Dec 3rd, 2018 11:45 am
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David Hoatson
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It doesn’t look like it’s wired right. Maybe someone can share a schematic. Typically, High sends the power straight to the motor, Med passes through one speed coil before going to the motor (to drop the voltage a bit), and Low passes through both speed coils before going to the motor. 
Most multi-speed fans have the different speed windings in the same coil. A 2-speed fan speed coil has one winding and two wires. A 3-speed has two windings and three wires coming out. The Swan put each winding on a separate coil for some reason. 

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 Posted: Mon Dec 3rd, 2018 12:22 pm
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Neil King
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Thanks David. I can't even figure out how to ohm out the coils. Hoping someone might have a schematic. All the wiring looks original except the head wire and power cord. Both of those have been replaced and I'm thinking maybe they incorrectly wired the new head wire thereby only getting one speed?

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 Posted: Mon Dec 3rd, 2018 01:30 pm
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Michael Rathberger
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http://www.afcaforum.com/view_topic.php?id=29600&forum_id=1&highlight=swan+two+coils

 

Might Help

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 Posted: Mon Dec 3rd, 2018 03:57 pm
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John McComas
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This pretty well nails down everything electrically about this fan...
Happy Fanning!


Attached Image (viewed 116 times):

Emerson12SilverSwan2.jpg

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 Posted: Mon Dec 3rd, 2018 04:28 pm
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David Hoatson
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It seems odd that they had to split the speed coil in two. Maybe they wanted to have a low profile base and ran out of space. 

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 Posted: Tue Dec 4th, 2018 02:16 am
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Jeff Jones
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Interesting...so the left and right coils are not identical...who-da thunk it? If they have a multi tap coil already it seems weird to need the 2nd single coil at all.

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 Posted: Thu Dec 6th, 2018 01:06 am
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Neil King
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Thanks John this is awesome! I'll try to wire accordingly and see what happens.

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