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Gas fridge for boat

Its switched for lpg. The burner wont stay on. The flame failure device has been changed and is working there is a spark . when i try it with the combustion chamber open or off it will light ok .its a sealed chamber about the size of a large match box with a air in take and air exaust out letits as if there is to much gas or air . i have tryed everthing to control the air encluding reducing pre airnation (thats spelt wrong) and my gas presure at the valve is 31 mil bar not that much above 28

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  • tyronegas Apr 30, 2008

    yes every thing you say is correct , but i dont have a flame, it wont light for me there is gas .air , and spark... it may light one time in two hundred trys and the flame looks pefect, blue with a slight orange tip and stays lite. yes flame falure device , thermocouple safety device same thing help help

  • tyronegas Apr 30, 2008

    yes tried that as well ,had the spark making contact with the burner and and then making contact with the thermocouple witch is higher up still no good ??help

  • Sunspot24 Jun 22, 2008

    Similar problem. If ref not used for several days, it won't light up on gas, on initial trials- many of them.

    But-- if the ref has been operating on A.C. for over an hour, and I switch to gas, it will light up OK and be Ok until the next time it sits idle for a few days. Then it won't light up again.

    It will never "gas" up when cold started.




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What you are referring to as the flame failure device and there is a spark? On gas refrigerators there is generally a thermocouple safety device. This thermocouple shuts off the gas if it does not receive heat from the flame to generate the millivolt current to hold the gas safety valve open. If this thermocouple is bad it will allow the flame to be lit but it will go out as soon as you manually release the depressor that opens the valve. Your supply pressure is in range. If you have to much primary air you will get a flame lift of from the burner. To little primary air and you will have a dirty and lazy flame.

Posted on Apr 30, 2008

  • James Helmer
    James Helmer Apr 30, 2008

    Check the position of the spark at the flame head ( Burner) and have someone make it spark while you are watching it. Spark may not be making in the gas stream.



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