I'm at my wit's end with this. About 5 days ago, the pilot light on my water heater blew out. I reli t it. Lasted one day. Blew out again. Pulled out the burner assembly, replaced the thermocouple. Relit it. Lasted 15 hours. Blew out again. Took out the burner assembly, cleaned everything in sight .. pilot lasted around 8 hours. There are no new entrways for drafts so I don't think its a draft issue...but to be on the safe side I stuffed every potential air leaking crack.
I tend no to think it's a chimney issue as I've got a boiler also on that chimney and I have no problem with the boiler. The draft on the chimney is excellent. I'm down to two theories....one is the gas valve. Is this a realistic issue? I've checked to see what happens when I go from full on to pilot and back to full on and back to pilot and back to full on. It goes back and forth on each setting with no problem. The second explanatiion might be the "popping" effect that sometimes comes with gas abruptly shutting off....perhaps it's possible that the gas is now "popping" when it turns back to pilot and the force of the "pop" blows out the pilot. Any and all suggestions gratefully received!
Thanks........Art
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