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or an aging blower motor that is failing to move enough CFM across the heat exchanger
allowing for discharge air monitoring and optimal start recovery based on ambient conditions
ensuring exact bolt-pattern alignment and harness compatibility
Using a genuine Bard HVAC control board ensures the safety circuits and blower delays function according to the original equipment design
Lochinvar & A.O. Smith 100289391 Pressure Switch 320720-756 or an aging blower motorThe 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
US$ 150.00
US$ 103.51
US$ 178.59