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Posted by jasper on January 17, 2007 at 06:36:20:
I have a single pipe steam system with a Burnham 406B boiler. My guess is it's about 20 or 25 years old. This heating season the pilot flame goes out often, about once a day or so. Last year, the system ran fine. Any tips on what I can check to diagnose the problem? It is set to cut in a 2 psi, with a 1 psi differential. The pressure does seem to stay within that range.
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