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

    Oct 5, 2012, 08:39 AM
    Garage overhead furnace starts warm then blows cold
    My garage overhead heater blows good warm air when I first start it up. After the first cycle though it only blows cold air. The flame rarely burns after the first time.
    mygirlsdad77's Avatar
    mygirlsdad77 Posts: 5,713, Reputation: 339
    Plumbing Expert
    		  
    #2

    Oct 5, 2012, 09:09 PM
    Probably time to call in a tech. Gas pressures will need to be checked as well as the gas valve, burners, heat exchanger, etc. Something is clearly wrong with the unit, and when it comes to a gas related issue, you really need a pro to diagnose the problem.
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