This part is used to ignite the gas to light the oven burner in your range. If your oven is not heating, check the igniter to make sure it is glowing. If the igniter is glowing and your oven is not heating, your igniter is not strong enough to heat the oven and you will need to replace it. When replacing the igniter, be very careful not to touch the black element part of the igniter as it is very fragile. You will need to reuse the original bracket when installing the new igniter.