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If the pilot flame frequently flickers or goes out due to external drafts
Key Benefits: Premium Forged Brass: Constructed from high-copper C360 alloy to prevent cracking and resist corrosion in harsh environments
ideal for high-temperature boiler water level controls
This specific model is designed for 24V alternating current (AC) systems
Armstrong Furnace R42640-001 Ignitor/Sensor Els PW 17895 If the pilot flame frequentlyThe Armstrong Furnace R42640 001 Ignitor Sensor is a critical OEM replacement part designed for precise ignition and flame rectification in residential HVAC systems. Engineered as an ignitor sensor less pilot assembly, this component ensures reliable burner cycles by providing the necessary spark and feedback signal to the furnace control board. Transitioning to a high performance silicon nitride ignitor configuration often improves longevity over