Please contact a certified technician to assist with gas water heater maintenance. With that being said, this is what I did to light the pilot light on my Rheem gas water heater that had gone out. The instructions on the Rheem gas water heater itself were not well written. They led me to believe that I had to push the pilot button and then press the lighter button. I found documentation online that was more specific and suggested that I had to continuously hold down the pilot button, while pressing the lighter button with my other hand until the flame appeared. To make things more confusing, after the flame appeared, I had to continue to hold the pilot button for an additional 60 seconds. If I let go of the pilot button immediately after the flame appeared, the pilot flame would go out. Nevertheless, it was a very confusing process but this is how I lit the pilot light on my gas water heater and I have hot water again finally! #WaterHeater #Howto #GasWaterHeater