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-   -   Coleman evcon furnace model # EB178 (https://www.askmehelpdesk.com/showthread.php?t=637872)

  • Feb 21, 2012, 02:56 PM
    bowhunter1
    Coleman evcon furnace model # EB178
    When I turn the thermostat in the auto side nothing happens but when in the manual (ON) position the furnace works. What do you think my problem is. I replaced a blower relay that was humming but that didn't seem to do the trick.
  • Feb 21, 2012, 07:24 PM
    wmproop
    What kind of tstat do you have? Name/model number
  • Feb 22, 2012, 06:44 AM
    bowhunter1
    It is a honeywell 5-2 day programmable thermostat with backlight model# is RHT2300B
  • Feb 22, 2012, 07:05 PM
    mygirlsdad77
    Did you by chance unhook any of the thermostat wires from the furnace when you replaced the relay? If so, are you certain you got them hooked back up correctly? Let us know.

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