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    Walter Jinks's Avatar
    Walter Jinks Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Sep 30, 2008, 09:50 AM
    Trane xe80 code 4, no heat
    All summer the cooling worked fine, when I switch over to heat this week, it didn't come on.
    The control box shows a code 4, which says "THERMAL PROTECTION DEVICE OPEN"
    Any help?
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Sep 30, 2008, 10:13 AM
    A safety device is open. You will need a meter and track down the defective item. Wiring diagram usually on blower door.
    cinwnst's Avatar
    cinwnst Posts: 3, Reputation: 1
    New Member
    		  
    #3

    Dec 16, 2008, 09:07 AM
    I had the same code after a lot of looking and figuring what wire goes with what I took the circuit board off and looked at the back it had a burned mark which means the circuit board is bad. It cost me $200.00. I purcharsed a new one and put it in myself works great. Just rememenber when you disconnet the wires and put the new board in you do one wire at a time so you know where they belong!
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #4

    Dec 16, 2008, 10:20 AM
    I hope the person has it fixed by now. It is a old post. LOL
    KC13's Avatar
    KC13 Posts: 2,556, Reputation: 99
    Ultra Member
    		  
    #5

    Dec 16, 2008, 03:31 PM

    Maybe their internet service is really, really slooooooooooow...
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #6

    Dec 16, 2008, 04:25 PM
    Lol
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