This is a simple test to see if the windings in the motor are good. It also checks to see which pairs of wires go to each winding. I used a 3V LED (https://amzn.to/2QCheG4) for this test. A 4V or 5V LED should work too. You could also use a lower voltage LED with a resistor and a higher voltage LED might also work. And, of course, you can use a multimeter or incandescent bulb.

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