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  1. #1

    Question Gas fireplace fire goes out after @20 minutes but pilot stays on

    Heat-n-glo fireplace, fire goes out after a while (after 20 min or sometimes up to 1 hour) but pilot stays on. Problem started after Gas to the house had been turned OFF for the day. That was a month ago. Often it's not even fully warmed up (eg. 15-20 minutes) and other times an hour or two. So guessing it's not a heat sensor. Any air in the line should be looooong gone. Replaced thermopile 13 months ago. How can I eliminate the most likely possibilities?

  2. #2
    Join Date
    Aug 2011
    Location
    Ontario
    Posts
    381
    A few more details would help. Model # ? is it an insert or direct vent. ? Thermostat or switch ? Main valve is dropping out and pilot remains lit than I would lean towars wiring or gas valve. How old is the unit and when was it last serviced by a pro. ??
    There is no bad beer, some just taste better than others.

  3. #3
    Join Date
    Jun 2010
    Posts
    27
    Quote Originally Posted by JerryWoods View Post
    Heat-n-glo fireplace, fire goes out after a while (after 20 min or sometimes up to 1 hour) but pilot stays on. Problem started after Gas to the house had been turned OFF for the day. That was a month ago. Often it's not even fully warmed up (eg. 15-20 minutes) and other times an hour or two. So guessing it's not a heat sensor. Any air in the line should be looooong gone. Replaced thermopile 13 months ago. How can I eliminate the most likely possibilities?
    I have seen this before, I had to replace the thermopile again!

  4. #4
    Join Date
    Dec 2011
    Location
    PA
    Posts
    199
    check all wire connections, reconnect all spade connectors, if you have a "light switch" on the wall for turning the unit on and off. you may wanna replace that as well

  5. #5
    Join Date
    Mar 2007
    Location
    north carolina
    Posts
    32
    it may have a O2 sensor cutting it off. check to make sure it is getting enough air for combustion

  6. #6
    Join Date
    Aug 2004
    Location
    S.E. Pa
    Posts
    6,175

    Smile

    Deon, O2 sensors are "oxygen depletion sensors" which are special safety pilots used on ventfree gas appliances. The only ventfree appliances Heat&Glo makes are electric.

  7. #7
    Join Date
    Mar 2012
    Location
    Pacific NW
    Posts
    28
    Have you checked for a vent safety switch?

  8. #8
    Join Date
    Oct 2008
    Location
    Brewster, MA
    Posts
    320

    Gas Pressure:

    Have you checked the gas line pressure to the gas valve? If it started after the gas meter was turned off, it could be a bad gas regulator in the gas meter.

    It could ne any of the things mentioned but you should make sure that you have adequate gas pressure. Is it Nat. Gas or LP?

    Its unusual that the burner stops but the pilot stays lit. If the thermocouple senses no flame, it shuts down everything. Its not supposed to leave itself burning.

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