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    GingerH's Avatar
    GingerH Posts: 1, Reputation: 1
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    #1

    May 6, 2009, 08:52 AM
    Coleman Gas furnace, light flashes 4 times
    I have a 1995 Coleman Evcon gas furnace and the green light flashes four times. Instructions say 'limit cycling'. I replaced the limit switch but it didn't help - still flashes four times. The unit lights but the blower doesn't come on and it doesn't shut down. Could the new switch be bad or are there other things I should be checking? Thank you.
    Joshdta's Avatar
    Joshdta Posts: 2,549, Reputation: 45
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    #2

    May 6, 2009, 01:23 PM

    Sounds like you have a bad fan motor, or control board. Is the fan motor getting power?
    KidChaos's Avatar
    KidChaos Posts: 45, Reputation: 3
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    #3

    Jun 30, 2012, 07:54 PM
    Quote Originally Posted by GingerH View Post
    I have a 1995 Coleman Evcon gas furnace and the green light flashes four times. Instructions say 'limit cycling'. I replaced the limit switch but it didn't help - still flashes four times. The unit lights but the blower doesn't come on and it doesn't shut down. Could the new switch be bad or are there other things I should be checking? Thank you.
    If you mean the burmers don't shut down don't run it! If you mean the fan and inducer that's normal, you just may have a hcracked heat exchanger call utility to test for it.
    KidChaos's Avatar
    KidChaos Posts: 45, Reputation: 3
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    #4

    Jun 30, 2012, 07:56 PM
    I saw the blower never runs? Is this limit a temp delay combo unit? If so its wired wrong or fan motors bad manually advance it to see if fans running then, or jumper the wires to test it.
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