Pilot won't stay lit on boiler

1jackw

I have a 9 year old gas fired Utica boiler. The pilot light went out and I am following the directions for re-lighting it, but it won't stay lit. I suspect it may have to do with the metal tube that connects the gas control to the pilot, because when I bought the house a year ago, that tube had been replaced and the old one was lying next to the boiler. Maybe this tube has a short lifespan? Any ideas? If anyone thinks this tube is the problem, any doubts that an amateur could replace it? Our gas company wants $105 for the first 30 minutes, plus parts, so I want to try to repair it myself as long as it isn't too complex.

Thanks for helping out.

Jack

delstu

It seems more likely to be the thermocouple or flame sensor. A 9 year old unit most likely uses a flame sensor.

Do you use natural gas or propane?

1jackw

I use natural gas...

So I couldn't go without heat for another night (2 small kids and a wife that prefers being toasty), so I paid a plumber to come in, and he replaced the thermocoupling for $150. Nice diagnosis delstu! Thanks for replying.

Jack