How to Change an Ignitor Switch on a Furnace?

Answer The ignitor on your furnace is a small, metal and ceramic component that lights the burners. However, it doesn't actually produce a flame. Instead, the metal prong at the end of the ignitor heats u... Read More »

Top Q&A For: How to Change an Ignitor Switch on a Furnace

How long does a furnace ignitor last?

A silicon carbide furnace ignitor is the most common type of ignitor. It should last for three to five years if it's operating normally. A silicone nitride ignitor will last twice as long.Reference... Read More »

How to Replace a Furnace Ignitor?

If you have a relatively new furnace it is probably equipped with a hot-surface ignitor. These ignite the gas when your furnace turns on. Electricity passes through the ignitors and causes them to ... Read More »

How to Replace the Ignitor on a Trane VX80 Furnace?

The Trane VX80 is a variable-speed gas furnace that uses a hot-surface ignitor to light fuel from the gas valve. The glow-type ignitor heats rapidly to a high temperature, triggering the gas valve.... Read More »

The Parts on My Furnace's Ignitor Make Noise?

A furnace ignitor is designed to ignite incoming fuel so that the primary burners can function. The two common types of ignitors are the pilot light, which stays lit continually and ignites incomin... Read More »