11-11-2017, 10:39 AM
I have a Burnham NG boiler, gotta be at least 25 years old. Never had a lick of trouble with it. It has an intermittent pilot light. It's conventionally vented into the chimney, no power vent. The controls are Honeywell. About a week ago I heard the burner stutter several times. Then yesterday when I was working nearby it did it again. The burner would stop firing, the ignition would fire almost immediately, and the burner would come back on, all the while the pump was running. It did it a couple of times.
I got inside it and removed the pilot assembly. It looks fine, and the pilot light orifice looks clear. The ignition and ground wires look fine, too. I was hoping something easy would be the source of the issue, but that doesn't seem to be the case. I think I'm left with the gas valve or ignition module being the root cause here but wanted to ask the brain trust for help in diagnosing what the problem might be. Of course Winter is coming. I heat mostly with wood but I go skiing for a week at a time and then the boiler has to work. Thanks in advance.
John
I got inside it and removed the pilot assembly. It looks fine, and the pilot light orifice looks clear. The ignition and ground wires look fine, too. I was hoping something easy would be the source of the issue, but that doesn't seem to be the case. I think I'm left with the gas valve or ignition module being the root cause here but wanted to ask the brain trust for help in diagnosing what the problem might be. Of course Winter is coming. I heat mostly with wood but I go skiing for a week at a time and then the boiler has to work. Thanks in advance.
John