Q&A Problem with new Marco gas fireplace

Post in 'Questions and Answers' started by QandA, Nov 24, 2007.

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  1. QandA

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    Nov 27, 2012
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    I had a house built with a gas fireplace(marco). It worked normally last winter but now the gas shuts off after approx. 1 - 1 1/2 hours of operating. Is it a valve? do I need a new insert? Should I still be using it?


    You need a service call. There are a couple of things it could be:

    You may need to replace or tighten/clean the thermocouple on the unit.

    You may need to test/replace the overheat sensor (if it has one).
    The chimney may have a birds nest, etc. in it, causing heat to back up and turn the unit off (overheat sensor again).
    I doubt that you need a new insert, just a checkup and possible adjustment.

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