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Trane XR12 Heat doesnt work after 15minutes of operation

When I set my thermostat to heat, the heat turns on and the air temp is hot from the registers but after about 15minutes of operation I notice the air temp from the register starts to cool to room temp more or less. also there is a noise coming from the outdoor unit that sounds like pressure venting. this seems to coincide with the cooling of the air in heat mode

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  • Jeff R
    Jeff R Mar 31, 2014

    Someone told me it could be the reversing valve although it sould not stay open that long

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Sounds to me like the outdoor unit is malfunctioning. Could be a control board going crazy, could be the reversing valve leaking. A trouble call to the local contractor is the best idea, preferably a firm that deals with your brand.

Posted on Apr 01, 2014

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Posted on Jan 02, 2017

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