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    wjf1961's Avatar
    wjf1961 Posts: 2, Reputation: 1
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    #1

    Oct 6, 2011, 06:15 PM
    No info on thermostat.
    My Thermostat has no temp or anything on display. I have no voltage coming out of control transformer in air handler. I do have voltage going in. I am thing the control transformer is bad.
    wmproop's Avatar
    wmproop Posts: 3,749, Reputation: 91
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    #2

    Oct 6, 2011, 06:26 PM
    You probably thinking right
    T-Top's Avatar
    T-Top Posts: 1,871, Reputation: 100
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    #3

    Oct 6, 2011, 06:32 PM
    Its possible you have a bad transformer. On a lot of the systems now they will have a low voltage automotive fuse on the control board that will blow before the transformer(protection). Either or you will need to find out why it blew. A open main limit switch will kill 24v going to the thermostat. As much info that you can give about your system will help..
    wjf1961's Avatar
    wjf1961 Posts: 2, Reputation: 1
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    #4

    Oct 6, 2011, 07:04 PM
    Sorry, It is a Rheem unit and I do not see a fuse before or after the transformer. The number is 46-23115-02 on the transformer
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