A Laars hot-surface igniter is a critical component that lights the burner in your boiler or water heater, allowing the system to produce reliable heat and hot water. Over time, repeated heating cycles, electrical wear, and age can cause the igniter to weaken or fail completely, leading to ignition problems and unexpected system shutdowns. Recognizing the warning signs early can help you avoid costly repairs, improve energy efficiency, and prevent inconvenient breakdowns.
In this guide, we'll cover the top 7 signs your Laars hot surface igniter needs replacement, explain why these issues occur, and help you determine when it's time






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