I have a ~15 year old AO Smith gas water heater. The pilot needs to be manually lit. Over the years, it was not uncommomon for high local winds, via the gas exhaust pipe, to flow back down and extinguish the pilot! I have not noticed any recent high winds, yet the Pilot has gone out about once every 2 weeks (far more often than in the past) over the last 3 months.
My question. Is it possible for the gas pilot "safe lit" thermocouple to have a "soft" failure. By that I mean I can easily relight the pilot, but as noted it may go out several days later. If yes, I am I correct that it is easy to replace that thermocouple??
BTW Is it possible, when relighting, that I may have inadvertenly physically moved the thermocouple, so it is not now optimally located above the pilot light? I am not sure I would recognize that issue ?? Note: When relighting, I have not noticed any extensive delay (ala slow to heat up, due to placemant before the pilot remains on, ergo themocouple active on.