Genuine Original Equipment Manufacturer (OEM) parts! Gas valve and temperature control assembly (part number 6911131) is an original equipment manufacturer (OEM) part that fits American Water Heater models N30S61-303, N30T61-303, N40S61-403, N40S91-403, N40T61-343, N40T91-403, N50T61-403, N50T61-504 and N50T91-403. Gas valve and temperature control assembly 6911131 supplies the burner with fuel to heat the water. The temperature control thermostat controls the gas valve. Replace the gas valve assembly if the indicator light blinks continuously 5 times or 7 times between 3-second pauses. A service technician is recommended for this repair because the gas supply line connections must be checked for leaks after the repair. For American Water Heaters.