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<blockquote data-quote="thill" data-source="post: 511841" data-attributes="member: 4972">Calling the MFG or finding a wiring diagram via Google search is the best idea.Typically, the black will be ground and the red will be power, but blue can be anything.&nbsp; &nbsp; Is there a green wire somewhere, maybe cut off short?&nbsp; With many trim units, + power to blue is up (Blue to the sky) and + power to the green is down. (Green to the grass)&nbsp; &nbsp; &nbsp; Look for a green wire somewhere.If I could not find any kind of info, and it&#039;s only those three wires, I would probably ground the black and touch the red to + power for just an instant and see what happens.&nbsp;&nbsp; If the motor turns, I would see which direction it goes.Then I would touch the blue to positive for just an instant.&nbsp; If it makes a big spark, STOP.&nbsp;&nbsp; But if it turns the motor in the opposite direction, there you go.Either way, be careful, and I hope you figure it out.</blockquote>

[QUOTE="thill, post: 511841, member: 4972"] Calling the MFG or finding a wiring diagram via Google search is the best idea. Typically, the black will be ground and the red will be power, but blue can be anything. Is there a green wire somewhere, maybe cut off short? With many trim units, + power to blue is up (Blue to the sky) and + power to the green is down. (Green to the grass) Look for a green wire somewhere. If I could not find any kind of info, and it's only those three wires, I would probably ground the black and touch the red to + power for just an instant and see what happens. If the motor turns, I would see which direction it goes. Then I would touch the blue to positive for just an instant. If it makes a big spark, STOP. But if it turns the motor in the opposite direction, there you go. Either way, be careful, and I hope you figure it out. [/QUOTE]

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