Lochinvar & A.O. Smith 100289391 Pressure Switch 326058-758 What are the signs that

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Lochinvar & A.O. Smith 100289391 Pressure Switch 326058-758 What are the signs thatThe Lochinvar & A. O. Smith 100289391 Pressure Switch is a critical safety component engineered for high efficiency condensing water heaters and commercial boilers. Calibrated to a 0. 55" WC (Water Column) set point, this direct replacement for 100294588 monitors the induced draft blower to ensure proper venting of combustion gases. In the field, this switch is the primary defense against blocked flue conditions and inducer motor failure, preventing