Joe F· Registered
Discussion Starter · #1 ·
I have an intermittent issue with my Burnham Series 2 gas boiler. Once in a while, the flame on the end burner burns in the burner tube rather than burning "above" the flame slots. I can tell when it happens, because it makes a whistling sound. If I blow hard on it, it goes back to normal. It seems to happen once a month or so. Trying to figure out what might cause this.