I just installed a GG40506AVJ00 and - although the pilot lights - it will not stay lit. When the red pilot lighting button is released, the flame immediately dies.
I'm intimidated by the sealed compartment and the extra safety devices in the gas valve.
I decided to immediately buy another and swap the units tomorrow after I got poor service responses from GE. Today, on Tuesday, the earliest a plumbing service could look at it was next Monday! (and then probably order parts!).
The wait for tank emptying will be used to disconnect the gas, the vent, and undo the water supply unions (yes, it is nice to have them!) and remove the risers from the tank. I'll return the bad tank to Home Depot and let the chips fall where they may.
