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Three bar fire keeps going out

I've got a three bar fire and it has worked fine up until lately. However, recently the flame on the front of the heater has been flickering and then the heater has been turning itself off. I bought a new gas cylinder thinking that it could have run out but the problem remains. I know that I don't have a leak in the pipe between the cylinder and heater, so I can't think what it could be. Thank you for your help.

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Re: Three bar fire keeps going out

Look at the burners and see if there are any cracks or irregularities. Also the flames should be nice and blue in color, if not, then some new burners may be in your future.

Posted on Jan 09, 2008

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Should the igniter fire constantly?

Hard to answer the question with out the make and model information. Generally heaters that use an electric igniter in place of a pilot light only fire the igniter until the flame is sensed. If it keeps firing after that then the sensor that heats up to tell it the flame is lit could need replacing.

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I light the pilot on my built in fireplace, a thirty to forty seconds after turning on the main burner the fire will go out, for a few seconds prior to the fire going out the pilot flame shows a lifting...

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1 Answer

Furnace will start and sequence fine run for five minutes or so then the flame cuts out....miller type furnace put a new board in last year so now it cycles three times and goes into soft lockout.....

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Gas keeps switching off after a few minutes


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The thermocouple is is the skinny copper tubing that should be screwed to the thermostat and the other end is warmed by the pilot flame. This part sends the signal to let gas go to burners if they are lit, but in case the flame goes off without shutting the valve or thermostat off, (if wind blows or accidentaly spill something on it) this device inmediatelly send the signal to stop flow of gas, when defective, some times works fine and some times does it erratically. (Same thing does in a gas water heater) It is very common for this device to go out and it is very inexpensive and easy to replace.

All gas units are equipped with some kind of device that does the job of the thermocouple, they may call it something else. But that's the part that may be defective in your unit.

Don't forget to rate this post!! Good Luck!!

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