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How do I replace the transformer? - Heating & Cooling

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#1turn high voltage off to the unit service disconnect or at your panel box.there will be two wires comeing out one side of transformer. And could have four out other side .I dont know what t-from. You have .take notes and pic with your phone if you can there should only be two wires for your low voltage wireing and two for your high side.on high voltage side it will show you one wire as common usealy its white than pick other color for what voltage you have going to unit 110 or 240 volt s.the old t-from should have wireing diagram on it .cut wires by old transformer just cut wire at wire nuts leavening color of wire and wire nut so it stays with wireing to old transformer at this point hopefully you should be able to follow what wire goes to wire on transformer. If you have any extra high voltage wires just wire nut them separately only useing two.I hope this helps without seeing t-from its hard to be exact but just be very aware of what wire goes to t-from and you will be ok .note dont go by color sometimes color s will be different on each t-from

Posted on Apr 03, 2015

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Add a comment any time, and that sends email, and I will respond with more information if needed.

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