Homeowner was not getting any hot water. The pilot was lit but the gas control valve had failed and would not light the burner. Shut gas and water off. Got new warranty gas control valve and burner assembly. Removed the burner assembly. Once the tank had drained removed the control valve and replaced. Reinstalled the gas sediment trap and installed new burner assembly. Turned water on and filled tank and turned gas on. Turned on the pilot and lit the water heater and set to previous temperature. Everything is working properly at this time.