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A failing blower housing often manifests through excessive vibration or resonant rattling
As a non-positional relay
Secure Threading: The 1/4"-20 FNPT probe mount ensures a vibration-resistant seal for consistent electrical continuity
Simplified Field Service: Standardized terminal markings and footprint allow for rapid ICP 1170063 installation in high-density furnace cabinets
Lochinvar & A.O. Smith 100158115 Pressure Switch 320735-701 A failing blower housing oftenMaintaining proper combustion and safety protocols in high efficiency water heating systems requires precision components like the Lochinvar & A. O. Smith 100158115 Pressure Switch. This genuine OEM replacement part is a normally closed (N. C.) air pressure switch factory calibrated to a 1. 42" WC (Water Column) set point. It serves as a blocked inlet air pressure switch, functioning as a critical safety limit that monitors the differential pressure
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