They never could find out what was wrong with it. They replaced every part they could and finally just gave us a new one. And it was fine at first. But the same problems started happening up until now! I just relight it perhaps 2 hours ago when daughter took a shower and ran out of hot water. I had gotten to the point of being OCD in checking it to make sure it was still lit. And it had been the last time I looked. And even though it is a 50 gallon tank, apparently when it goes out, the water cools very quickly.
So I relit it, called the plumber because it was getting to where I had to light it daily. Plumber asked me some questions about it and I had to go out there to look at it. And it it wasn't lit! So it went out less than 20 minutes after I lit it. And now it won't light at all. Grrr... Grrr... Grrr...
I am sick of this. And they can't do anything about it tonight. Guy said he could come out here but I would have to pay $150 just to get him out as it would be after hours charges. But he had no clue whether or not he could do anything about it tonight. So... We wait.
Only thing I can figure is that it might be the venting. That is the only thing they didn't check. They did say that the last one wasn't drafting properly or something like that.
I thought maybe that it had something to do with humidity. We had a few humid days lately and it seemed to go out when it was humid. Then the torrential downpour throughout the night last night that knocked the power out. Amazingly enough the thing stayed lit through all that.