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    spm59701's Avatar
    spm59701 Posts: 3, Reputation: 1
    New Member
    		  
    #1

    Oct 11, 2009, 02:04 PM
    Furnace will not start
    I have an older model sears searies 600 model number 867761833 heater. The pilot light is on but the furnace will not start. The programmable thermastat is only a year old but I put new one in any way. I also changed out the thremocouple. A few weeks ago I noticed that it would start then stop a few times before it would kick on. Any suggestions since its minus 2 outside :-(
    hvacservicetech_07's Avatar
    hvacservicetech_07 Posts: 1,083, Reputation: 75
    Ultra Member
    		  
    #2

    Oct 11, 2009, 03:33 PM

    Will the blower run if you switch it to "ON" on the thermostat?
    mygirlsdad77's Avatar
    mygirlsdad77 Posts: 5,713, Reputation: 339
    Plumbing Expert
    		  
    #3

    Oct 11, 2009, 04:30 PM

    Waiting for your response to hvacservicetech_07's question, and we will try to help, one step at a time.
    spm59701's Avatar
    spm59701 Posts: 3, Reputation: 1
    New Member
    		  
    #4

    Oct 11, 2009, 09:31 PM
    After some more investigation I found a blown fuse that I did not know was there. I replaced the fuse and found a wire that had melted grounded out to blow the fuse. Now the furnace works but one of my 4 burners is not burning correctly, (I am assuming it needs to be vacuumed out). It is near the wire that grounded out. The instead of being a nice upward shooting flame it kind of goes every where. I will have to leave it till morning though since I have to work grave yards.
    hvacservicetech_07's Avatar
    hvacservicetech_07 Posts: 1,083, Reputation: 75
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    #5

    Oct 11, 2009, 10:37 PM

    Sounds like the orfice and burners could use a good cleaning. Try removing the orfice on that burner, it may be partially plugged.
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