The typical operational lifespan of a gas oven glow-bar igniter ranges between three and seven years, depending on how frequently you bake and roast. Because glow-bar igniters rely on a specialized silicon carbide material that degrades gradually under extreme thermal stress every time electrical current passes through it to open the safety gas valve, they eventually lose the electrical resistance required to trip the valve. You can troubleshoot igniter wear easily by timing preheats. You can verify equipment health when routine inspections confirm that the igniter glows a bright white-hot color and draws sufficient amperage, ensuring reliable and rapid oven ignition.
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