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and shaft dimensions match the original specifications
How do I diagnose a failing PTC relay
Durable Construction: Heavy-duty bronze body resists corrosion and mineral buildup common in steam heating applications
OEM Precision: Direct factory fitment ensures mounting standoffs and wiring harnesses align perfectly with existing G50 and G1 cabinets
Enhanced Communication: Optimizes data exchange between the HVAC control module and peripheral system sensors
Lochinvar & A.O. Smith 100110973 Switch 318518-761 and shaft dimensions match theThe Lochinvar & A. O. Smith 100110973 Blocked Flue Switch is a critical safety component designed for high efficiency boilers and commercial water heaters. As a veteran technician knows, this negative pressure switch (often referred to as a spill switch) is engineered to sense obstructions in the venting system, protecting the heat exchanger from hazardous flue gas recirculation. When the integrated sensor detects a lack of proper draft or a blocked
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