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    big0fam5's Avatar
    big0fam5 Posts: 2, Reputation: 1
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    #1

    Oct 16, 2009, 08:25 PM
    Trane XR80-Trouble code
    I have a Trane XR80 furnace and this afternoon it just started blowing cold air, so when I turn the heat up so it come on (when it kick on) all it does is blow cold air (no warmth at all).
    The trouble code thing is blinking 4 blinks (light).
    PLease help it is getting vary cold here in MN and I got a 3wk old baby!!

    PLease any one know what it may be and how to check it or fix it?
    KUXJ's Avatar
    KUXJ Posts: 975, Reputation: 97
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    #2

    Oct 16, 2009, 09:53 PM
    From hvac1000:
    https://www.askmehelpdesk.com/heatin...ce-279542.html Look on the inside of the blower door for the trouble codes.

    I also found this:

    2 flashes-System lock out
    3 flashes-Pressure switch stuck open or closed
    4 flashes-Open high temp. limit switch
    5 flashes-Flame sensed without gas valve
    6 flashes-115 volt polarity reversed
    7 flashes-Gas valve circuit error
    8 flashes-Low milivolt signal at flame sensing rod

    https://www.askmehelpdesk.com/heatin...ce-278397.html
    big0fam5's Avatar
    big0fam5 Posts: 2, Reputation: 1
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    #3

    Oct 16, 2009, 09:59 PM
    It's blinking 4 times.
    KUXJ's Avatar
    KUXJ Posts: 975, Reputation: 97
    Senior Member
    		  
    #4

    Oct 16, 2009, 10:04 PM
    From hvac1000, check:

    https://www.askmehelpdesk.com/heatin...ce-278397.html
    KUXJ's Avatar
    KUXJ Posts: 975, Reputation: 97
    Senior Member
    		  
    #5

    Oct 16, 2009, 10:06 PM
    You can check the first three, the last two may require a service call
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