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 Posted: Sat Oct 10th, 2020 06:55 pm
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Allen Scott
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Desperately need rewinding diagram for my GE F19S125 fan motor. Or would like consider motor only purchase. Feel free to email. Much appreciated

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 Posted: Sun Oct 11th, 2020 05:10 pm
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Mark Olson
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It is a little unclear to me as to what you are asking for. A rewinding diagram is generated, or produced, by the rewinder by counting the number of turns in a coil and drawing a linear representation of the stator slots, thereby mapping the plan for the new windings to be installed. The gauge of wire for each winding coil set is also noted. Is this a shaded pole motor? They are the easiest, by far, to rewind.

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 Posted: Sun Oct 11th, 2020 07:45 pm
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Allen Scott
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Hello Mark, thanks for your response. The motor was pretty much toast. It is a two speed motor that had 4 wires coming from it (2 white, 1 red, 1 green) that went to the switch (black, red, and green) and power.
There were 4 sections of coils. Each coil set consisted of a coil of +/- 30 windings and another of +/- 225 windings. These were bound together as one set. They were so broken I have no idea how their winding ends connected to each sequential coil set. I was hoping for a diagram/schematic that would assist me in rewinding this motor. Or perhaps some education. I very much appreciate your time to reply. Allen

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 Posted: Mon Oct 12th, 2020 12:34 am
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Mark Olson
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Okay, I gotcha. Yes, a challenge. Did you destroy the windings?

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 Posted: Mon Oct 12th, 2020 01:00 am
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Allen Scott
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I saved some of the wire. I assume that the coil wiring just continues from one set to the next and then out, thus accounting for the four wires out. If that’s the case then all I need to know is the gauge of the wire and which ends correspond to the 2 white and the red and green going out. Then, how do they connect to the switch and AC power. I would guess red to red switch wire, green to green switch wire, and black from switch to AC, but I’m not sure about the two white ends coming out. Hope this makes sense. Allen

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 Posted: Tue Oct 13th, 2020 08:54 am
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Mark Olson
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Okay. You have a tapped winding shaded pole motor. First, determine your wire gauge. Dial calipers are a good tool of choice, less than $20 at the import tool store.


Look up the measured caliber of your wire on a chart and buy that gauge of enameled magnet wire. You will wind four coils of each wire size, or number of turns, for a total of eight coils. Place the coils in the stator frame. Connect each set of four coils as in this diagram.

It is important that the coils are connected so that each coil is reverse polarity of the coil preceding it and the polarity of both coils on each pole are the same polarity. One set of coils will start with a red wire and end with a white wire. The other set of coils will start with a blue wire and end with a white wire. Hopefully you determined which coil set started with what color wire, but if not, it matters little, as the wire does not know what color it is, but the colors on the switch poles may change.



Finally, connect the wires as per the diagram that Steve Rockwell so kindly provided you! It would be best to power the rewound motor with a variac, or at least an incandescent light bulb wired in series with the line power when testing for the first time. Good luck, and please keep us posted.


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 Posted: Tue Oct 13th, 2020 02:26 pm
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Allen Scott
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Mark, beautiful, this is exactly what I needed.  Thank you Mark and Steve. With this help along with the diagram, I think I can (hopefully) accomplish the task.   I appreciate very much your time and education.  This is my first rewind project and only the second fan I have worked on.   Have a great day. Allen

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 Posted: Tue Oct 13th, 2020 08:07 pm
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Allen Scott
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Mark, I have studied the diagram. I had assumed that the red and blue coils started on the same pole. Question: Is that not correct? It seems that if both coils (red and blue - 225 windings and 30 windings) start on the same pole, then the colors on the diagram are not in harmony with that fact. It shows blue and white starting on one pole and ending in white and red.. What am I misunderstanding? Straighten me out please.

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 Posted: Tue Oct 13th, 2020 08:18 pm
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Mark Olson
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The diagram is a pictorial rendition. It does not necessarily represent actuality. As I stated before, the colors are not so important. The 'polarity' of the coils is important. If for some reason the switch gets wired incorrectly the first time, an incandescent bulb in series with the motor will light brightly. I think the longer winding is low speed and the larger winding in series with the shorter winding is high. My best guess is longer winding is red shorter winding is blue, but that may be incorrect.

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 Posted: Wed Oct 14th, 2020 01:30 pm
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Allen Scott
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Thanks Mark for your patience. If I’m interpreting the diagram correctly then, regardless of color, I see the start of one coil on pole one(either large winding or small) going to the green of switch and it’s end going to red of switch; the other coil start connects to end of first coil at the red of switch and it’s end goes to AC. Is this correct.

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 Posted: Wed Oct 14th, 2020 07:03 pm
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Mark Olson
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Try this


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 Posted: Thu Oct 15th, 2020 03:36 am
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Allen Scott
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Very good, I had it right. Thanks. I very much appreciate the assist. This is my first attempt at rewinding a motor and it really had me confused. The diagrams are great. Once I get the materials for the project I have the confidence now to accomplish the task.

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