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 Posted: Sat May 12th, 2018 06:34 pm
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Bernard Dotts
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I'm looking for some help with wiring a three speed switch on a General Electric 78X593 fan. It has a transformer in the base with four leads on it and is stamped 3028 420 on the metal plate. 
Could someone please help me out with a wiring diagram or pictures.

Regards,

Bernard

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 Posted: Sat May 12th, 2018 07:52 pm
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Alec Burns
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Hello Bernard and welcome!

A picture of the fan would help tremendously

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 Posted: Sat May 12th, 2018 08:53 pm
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Bernard Dotts
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Last edited on Sat May 12th, 2018 08:55 pm by Bernard Dotts

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 Posted: Mon May 14th, 2018 04:43 am
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Levi Mevis
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Your fan is a GE Vortalex from the 1940s and it would of had a Cutler & Hammer 3 speed rotary switch which would of wired between the speed coil and the motor and power cord.I've never actually seen a 3 speed fan with a speed coil with 4 wire leads coming out of it, usually they only have three wire leads coming out of them, which makes me think it may not be the original speed coil to the fan.

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 Posted: Mon May 14th, 2018 10:11 am
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Bernard Dotts
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The coil fits perfectly on the mounting points and has the part number 3028 420 stamped into it. I've located a switch but could really use some help with the proper way to wire this fan. If this is not the proper coil do you think that I can still make it work? It ohms out with different resistance combinations.

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 Posted: Mon May 14th, 2018 02:55 pm
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Levi Mevis
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That coil looks a lot like the speed coil in my 1955 Kenmore/Signal fan that's the only reason why I said it doesn't look original, but considering I've never had my Vortalex fan apart before your fan could very well be original and I just didn't realize it. Usually  with the switch the speed coil wire leads go to the 3 main switch terminals that are arranged in an arch shape and then the bottom switch terminal (the lone terminal) is where you wire the power cord to.

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