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-   -   The outside fan and compressor run even when the thermostat is turned off (https://www.askmehelpdesk.com/showthread.php?t=660339)

  • May 14, 2012, 06:31 PM
    kin fu
    The outside fan and compressor run even when the thermostat is turned off
    I have a Trane 900 with heat pump. The outside unit still runs even when I turn thermostat off. I have to shut it off from the breaker. I put in a new Honeywell thermostat and it still does the same thing. What's wrong?
  • May 14, 2012, 06:53 PM
    Stratmando
    Try shutting of the inside unit and what happens?
    If it shuts down it may be a low voltage wiring problem or thermostat/wiring?
    If it doesn't shut down, contacts on compressor may be fused together.

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