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    BuddySilva's Avatar
    BuddySilva Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Oct 30, 2007, 05:03 AM
    Furnace blowing cold air.
    Hello,
    I have a Trane XE90 furnace that is 6 years old. The pilot is lit but it blows cold air and runs for long periods. I had it serviced including a fliter change in April and the technician said the high limit switch was stuck he got it to work but said it would not last very long. Can you tell me if this seems to be the problem again? And if so where it is located so I may replace it.
    Thanks,
    Buddy Silva
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Oct 30, 2007, 04:33 PM
    Sounds like the switch he messed with is defective. Just replace it.
    labman's Avatar
    labman Posts: 10,580, Reputation: 551
    Uber Member
    		  
    #3

    Oct 30, 2007, 08:26 PM
    Look for a pair of wires leading towards the combustion chamber. You may find pictures at https://www.askmehelpdesk.com/heatin...ons-58313.html
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