AFCA Forums Home
Home Search search Menu menu Not logged in - Login | Register
AFCA Forums > Antique Fan Collectors Association > Post-1950 (Vintage) > McGraw Electric "Big 20" 3 speed switch wiring help

 Moderated by: Steve Cunningham, Stan Adams, Rod Rogers
New Topic Reply Printer Friendly
McGraw Electric "Big 20" 3 speed switch wiring help  Rate Topic 
AuthorPost
 Posted: Fri Jun 19th, 2020 03:52 pm
  PMQuoteReply
1st Post
Greg Coburn
Guest
 

Joined: Fri Jun 19th, 2020
Location: Kentucky USA
Status: 
Offline
I need some advice on how and what type of 3 speed switch to install on this fan. The old switch broke years ago so I just direct wired to the plug and it worked on high speed only. It only has 2 black wires coming from the motor. Does it require a separate speed control device? Also amy advice on where to purchase.

Great forum, thanks in advance!

Back To Top PMQuoteReply  

 Posted: Fri Jun 19th, 2020 04:20 pm
  PMQuoteReply
2nd Post
Greg Coburn
Guest
 

Joined: Fri Jun 19th, 2020
Location: Kentucky USA
Status: 
Offline
With only 2 wires coming off the motor I'm guessing this is the wrong 3 speed switch?

Back To Top PMQuoteReply

 Posted: Fri Jun 19th, 2020 09:58 pm
  PMQuoteReply
3rd Post
Marce Clark
AFCA Member


Joined: Tue Jun 1st, 2010
Location: Floresville Texas, USA
Status: 
Offline
Hi Greg if the motor only has 2 wires coming out then it would need a choke coil for some kind of speed control.

Marce

Last edited on Fri Jun 19th, 2020 09:58 pm by Marce Clark

Back To Top PMQuoteReply  

 Posted: Mon Jun 22nd, 2020 05:15 am
  PMQuoteReply
4th Post
Levi Mevis
AFCA Member


Joined: Tue Feb 24th, 2015
Location: Elkhart, Indiana USA
Status: 
Offline
yes that fan had a speed coil that the motor was wired to and the kind of switch that these fans used were a Cutler-Hammer 3 speed snap switch that looked like the one pictured below.



Back To Top PMQuoteReply

 Posted: Mon Jun 22nd, 2020 06:46 am
  PMQuoteReply
5th Post
Greg Coburn
Guest
 

Joined: Fri Jun 19th, 2020
Location: Kentucky USA
Status: 
Offline
Yes! That's exactly what it looked like! Thanks. That fan came with a lake house I bought in 1990. Sold he house last year but kept the fan lol. The switch broke so I just took it off and direct wired the motor to the cord. It has one speed, high, and the off switch is unplugging from the wall. Amy idea where I get a new speed coil and switch? Thanks for the reply!

Back To Top PMQuoteReply  

 Posted: Mon Jun 22nd, 2020 02:13 pm
  PMQuoteReply
6th Post
Levi Mevis
AFCA Member


Joined: Tue Feb 24th, 2015
Location: Elkhart, Indiana USA
Status: 
Offline
If you still have the speed coil from the fan they make a modern version of that switch.

Back To Top PMQuoteReply

 Posted: Mon Jun 22nd, 2020 04:48 pm
  PMQuoteReply
7th Post
Greg Coburn
Guest
 

Joined: Fri Jun 19th, 2020
Location: Kentucky USA
Status: 
Offline
I do not have the speed coil. Do they still make them? Is there a website you can direct me to? Thanks

Back To Top PMQuoteReply  

 Posted: Mon Jun 22nd, 2020 04:54 pm
  PMQuoteReply
8th Post
Levi Mevis
AFCA Member


Joined: Tue Feb 24th, 2015
Location: Elkhart, Indiana USA
Status: 
Offline
no they don't unfortunately, you'll have to source a parts unit to get a good speed coil, I might have something in my parts stash but I kind of doubt it. 
You might try putting a want ad in the want ads section of the website and someone may have a speedcoil and switch assembly for this fan in their parts stash.

Back To Top PMQuoteReply

 Posted: Mon Jun 22nd, 2020 05:36 pm
  PMQuoteReply
9th Post
Greg Coburn
Guest
 

Joined: Fri Jun 19th, 2020
Location: Kentucky USA
Status: 
Offline
Great info, thanks. To be honest, it's not all that important to me because I use it in the garage to move the air so high speed is fine. When I found the 3 speed switch for $5 along with a 16 foot cord on Amazon I thought I would do both at the same time as I just wanted a longer cord primarily. Thanks again great forum!

Back To Top PMQuoteReply  

 Posted: Mon Jun 22nd, 2020 06:54 pm
  PMQuoteReply
10th Post
Levi Mevis
AFCA Member


Joined: Tue Feb 24th, 2015
Location: Elkhart, Indiana USA
Status: 
Offline
No problem, the switch you found though is for more modern box fans that have the speeds wound into the motor rather than a seperate speed coil assembly, like this fan used.

Last edited on Mon Jun 22nd, 2020 06:55 pm by Levi Mevis

Back To Top PMQuoteReply

 Posted: Mon Jun 22nd, 2020 07:46 pm
  PMQuoteReply
11th Post
Greg Coburn
Guest
 

Joined: Fri Jun 19th, 2020
Location: Kentucky USA
Status: 
Offline
Yeah discovered that the hard way when  my circuit blew!

Back To Top PMQuoteReply  

Current time is 06:31 am  
AFCA Forums > Antique Fan Collectors Association > Post-1950 (Vintage) > McGraw Electric "Big 20" 3 speed switch wiring help Top



Beige Theme By: Di @ UltraBB
UltraBB 1.17 Copyright © 2007-2008 Data 1 Systems
Page processed in 0.1569 seconds (12% database + 88% PHP). 27 queries executed.