Pilot light goes out after the water heater has been running for a few minutes.
by Allen Couch
I have a Master Plumber Reliance 501 Gas hot water heater. It is give or take 15 years old and have never had a problem with it. Came home yesterday and the hot water was warm.
Went and checked and the pilot light was off. I relit it and turned it on and it ran for a few minutes and then went out. I relit it several times and when I let release the pilot button it would go out. I let it sit for a while and went back and tried and it lit, stayed lit and turned the gas on and it started heating. It heated for about 10 minutes and then went out.