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I have a Trane xr12 air conditioner. I turned off 230v breakers at the air handler, cleaned the filter and turned the breakers back on. now the compressor doesnt come on. I checked the relay on the compressor, and if i close it manually it turns on but cant figure out why it isnt closing automatically. obviously not getting voltage. was working before i played w/ breakers. Also getting good 250v across all breakers. could i have lost a sensor or something/

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  • Robert May 28, 2011

    Are you refering to tje contactor coil not energizing on the outside compressor?

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Is the blower coming on inside? If it isn't, try tripping both breakers again. If the blower is working, your thermostat may be timed out or the air cond may have a timer in it that will keep it from coming on for a few minutes.

If none of the above work, make sure you didn't pull any wires off when you pulled the filters out.

Posted on May 28, 2011

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