Do I need special tools to swap out this valve? Is this the burner controller, on/off switch? Thanks!
Answer Hello Keith,
Standard tools are all that's needed to remove the gas valve. It turns the gas off but the ignitor is turned on by the potentiometer that mounts to the valve. Turn off the power supply before beginning any service on a gas unit. After you've changed the valve you should use a solution of soapy water to check for leaks. It is important to mix it like this: One Teaspoon of liquid soap to a Quart of water. The reason for this is that the gas is pressurized very low, (3 to 11 inches of water measured by a manometer). This is such a small amount of pressure that a thick solution will actually stop a leak where you cannot tell if it will leak or not. (Never look for a gas leak with an open flame).