An ignitor and a spark plug in a gas stove top are both components used to ignite the gas and create a flame for cooking. While they serve the same purpose, they operate differently and are found in different types of gas stoves.
Ignitor: An ignitor is used in modern gas stoves and ovens and is often referred to as a "glow bar" or "ignition element." It is an electrically-powered device made of silicon carbide or another conductive material that heats up when electricity passes through it. When the gas valve opens, the hot ignitor ignites the gas, producing a flame for cooking. Ignitors are common in most modern gas stoves and are more reliable than traditional spark ignition systems.
Spark Plug: A spark plug is used in older gas stoves and some outdoor gas grills. It is a device that produces a spark to ignite the gas and create a flame. When the gas valve opens, the spark plug generates a high-voltage spark, which ignites the gas and starts the cooking flame. Spark plugs are less commonly used in newer gas stoves, as they are generally considered less efficient and reliable than ignitors.
What happens if either one stops working?
If the ignitor or spark plug stops working, the gas stove will not ignite, and you won't be able to cook on the affected burner. Depending on the stove model and design, the specific symptoms may vary:
Ignitor Failure: In stoves with ignitors, if the ignitor fails, you may not see any glow or heating in the burner area when you turn the knob to ignite it.
Spark Plug Failure: In stoves with spark plugs, if the spark plug fails, you won't see any visible sparks when turning the knob to light the burner.
Common causes of this problem:
Wear and Tear: Both ignitors and spark plugs can wear out over time due to repeated use. Eventually, they may fail to generate enough heat or spark to ignite the gas.
Dirt and Grease: Accumulation of dirt, debris, or grease around the ignitor or spark plug can prevent them from functioning correctly.
Loose Connections: Loose electrical connections can lead to a lack of power transfer to the ignitor or spark plug, causing ignition failure.
Electrical Issues: Problems with the stove's electrical supply, such as a blown fuse or tripped circuit breaker, can result in ignition problems.
Faulty Components: A defective gas valve or faulty ignition control module can also lead to ignition issues.
If you experience ignition problems with your gas stove, it's essential to have it checked and repaired by a qualified technician. Avoid attempting repairs yourself if you are not experienced with gas appliances, as it can be dangerous and may void the warranty. Regular maintenance and cleaning of the stove's components can help prevent some of these issues and prolong the stove's life.