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The standard trip point begins at 3
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Contractors typically look for symptoms such as high superheat
Lochinvar & A.O. Smith 100109935 Flue Switch 326070-701 The standard trip point beginsMaintain the exhaust integrity and operational safety of your high efficiency heating systems with the Lochinvar & A. O. Smith 100109935 Flue Switch. As a critical safety component, this blocked flue pressure switch is engineered to detect vent obstructions and immediately signal the control board to terminate the ignition cycle, preventing hazardous flue gas recirculation. This genuine OEM part is the designated 100109935 replacement for 9004550215,
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