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  1. #1
    Join Date
    Jul 2007
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    Carrier alpha AI25H



    Anyone know the thermistor readings for this split system?
    Got a unit that won't run the outdoor fan in heat mode (starts up for a second at first, then off)
    Fan runs in cool mode, only a single speed fan. So it's either PCB fault or thermistor off somewhere, thermistors both 13kohm indoor and 40kohm outdoor.



  2. #2
    Join Date
    Oct 2008
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    newbury
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    Re: Carrier alpha AI25H

    Quote Originally Posted by paul_h View Post
    Anyone know the thermistor readings for this split system?
    Got a unit that won't run the outdoor fan in heat mode (starts up for a second at first, then off)
    Fan runs in cool mode, only a single speed fan. So it's either PCB fault or thermistor off somewhere, thermistors both 13kohm indoor and 40kohm outdoor.
    have you tried the carrier download website?

  3. #3
    Join Date
    Jul 2007
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    Australia
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    Re: Carrier alpha AI25H

    Yeah, no domestic splits there, just bigger stuff. I found some place ages ago, but I think it was US models so impossible to work out equivalence. (I don't come running straight to RE ya know At it's best it takes days/weeks for someone who may know to get online, so not good business practice )

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