Location: born and raised in San mateo ca. living in Sacramento Ca for 3 years now.
Rewards Points: 75
AO Smith gas water heater - main burner won't stay lit
what type of w/h power vent,direct vent,flame guard? does the flame and pilot go out and is it before or after it has reached temp?Really would narrow down the problem with more info.Look inside burner area check for any water sometimes there is a very small drip that lands on top of the burner.If no leak then it's a control valve,air intake or vent issue but need make and model and first 4 on serial #