common causes include blockages in the flue pipe

as well as several UDAP and UDAS models

If your furnace blower runs constantly but the burners won't ignite—or if the system is short cycling—you should test for continuity across the terminals

making it compatible with any standard DIN-mounted circuit breakers

Lochinvar & A.O. Smith 100110795 Ignitor L99H008 common causes include blockages inAs a seasoned technician, you know that a cracked or fouled hot surface ignitor is one of the most common points of failure in high efficiency residential water heaters. The Lochinvar & A. O. Smith 100110795 Ignitor is a critical OEM replacement part engineered specifically for hot surface ignition (HSI) systems. This silicon nitride ignitor serves as a direct 9005989205 replacement, ensuring precise timing and high temperature performance required to