Question about Carrier 38CKC042 Air Conditioner

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I have 2 zones, both of which are programmed. The display for zone 2 works fine. When I am looking at zone 1, the desired heating and cooling temps display as -- with no temps there. The system is set on Cool mode and Fan is on auto. Out mode is not selected. Hold mode is not selected. When I go into programming mode, the desired temps show there just fine, but as soon as I go back to normal operating mode, zone 1 only displays dashes for the desired temps.

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  • Pete Nunez
    Pete Nunez Oct 19, 2013

    I will also note that both zones are set with the exact same temps, auto fan, cool mode, etc. I am not trying for example to cool one room and heat another.

  • Thomas Woodburn
    Thomas Woodburn Jun 14, 2017

    Also, if these are the same, swap the two stats and see what happens

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Are these reading temps at 2 separate tstats or are you using temp sensors that send the temp back to the stat. It sounds like the sensor is not communicating with the stat.

Posted on Jun 14, 2017

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2 Answers

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1 Answer

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