Speed Coil Disaster

[Aaron Gillette]

Hi. I bought a GE AOG 16 inch oscillating fan no. 75425 some time ago. It was missing a speed coil (for some reason). I figured I could substitute a Dayton Type 367 speed coil into the GE speed coil housing and slider. It did work. The fan seemed to work well also. But then the coil is no longer working, for whatever reason. Given that these things are impossible to find, I thought I could rewire the Dayton speed coil core, and wire it for the GE fan. (The fan is the shaded pole type with two wires going to it). But 1. I have no idea if I can do this; 2. If so, how many windings I am supposed to use, and the gauge wire, and actually what it ought to look like in a schematic drawing. Could anyone help me? Thanks.

 

[Doug Wendel]

GE used that model number over several variants, and I've never bothered with the letter types.  Pics of your fan would be helpful.

[Aaron Gillette]

Hi again. This is a 1923 16" GE AOU "Loop Handle" fan, brass.
It is a two wire motor. the speed control has off, high, medium, and low positions. In high the power is apparently not going through the coil at all, it is going directly to the motor. When in medium the power is going from the motor to the coil and has a one ohm drop, to 6 ohms. Low is 7 ohms. The coil has a common and two speeds through the coil, medium and low. I think the wire is 22 gauge? Three wires are going from the coil to each of the taps, and one of the taps I think the high speed) is also connected to the motor. I am using brass screws, ground down to flatten them out, to mimic the original taps. Thanks.

[Lane Shirey]

As was requested before, pics of your fan help us to understand which model you have. 

[Aaron Gillette]

Sure. But the fan is in pieces. This is the only photo I have. Thanks.

[Aaron Gillette]

17 minutes ago, Aaron Gillette said:

Sure. But the fan is in pieces. This is the only photo I have. Thanks.

 

[Aaron Gillette]

P.S.: Would maybe a different type of GE fan work, in terms of extracting its speed coil? A similar one that is 12 inch blades? Or a GE 16 inch fan (if they made them) from the 1930s or 40s?

[Steve Sherwood]

I am pretty sure a speed coil from a different model will not work. The motor windings would have to be identical on both fans for the speed coil to work.

[Anthony Lindsey]

Many AOU's from that time used a 4 wire headwire and no speed coil.   there is a possibility they swapped out the stator with a 2 wire stator.   ALso have you taken the stator out to verify it is 2 wires all the way into the stator?

[Aaron Gillette]

Yes, I took the stator out. I entirely rewired the motor.