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  1. #1
    Join Date
    Aug 2005
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    outdoor unit power coming low voltage also coming when i put jumper RY unit run then i changed thermostate but same problem

  2. #2
    Join Date
    Jul 2006
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    how low is the votage coming in, it sounds like if you jump ry your unit should start, but if it doesn't start w/out the jumper it sounds like it may not be wired properly or you have a component stopping the voltage from getting to y. Check your pressure switches, time delay, etc.

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