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View Full Version : Dunkirk Gas boiler starts up then shut off


tbonesteak
Oct 28, 2009, 11:54 PM
I have a dunkirk Gas boiler. It has been working sporadically lately. Specifically it fires
And burners flame on then shut off. I'll turn off power switch and repeat the process
And the results are the same. My neighbor came over and bled the system ,removing
Sediment that was showing in glass water level tube. It worked all right for a day and the
Problem returned.

hvac1000
Oct 29, 2009, 01:58 AM
If it has a flame sensor clean it.