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Coleman Gas furnace, light flashes 4 times

Asked May 6, 2009, 08:52 AM — 3 Answers
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.

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Joshdta's Avatar
Joshdta Posts: 2,453, Reputation: 230
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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?
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KidChaos's Avatar
KidChaos Posts: 31, Reputation: 10
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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 dont shut down dont run it! if you mean the fan and inducer thats normal, you just may have a hcracked heat exchanger call utility to test for it.
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KidChaos's Avatar
KidChaos Posts: 31, Reputation: 10
Junior Member
  
#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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