Lochinvar & A.O. Smith 100233301 Switch 326058-755 When diagnosing furnace drainage issues

When diagnosing furnace drainage issues or water leaks near the blower compartment

Can the MF41-6043 replace the old MF-6103 exactly

ensure the fluid temperature does not exceed the seal's rated limits

9 to 36 degree F Adjustable Differential

or glycol applications requiring a spring return stem up fail-safe position

Lochinvar & A.O. Smith 100233301 Switch 326058-755 When diagnosing furnace drainage issuesThe Lochinvar & A. O. Smith 100233301 Switch is a critical fixed setting Normally Open (N. O.) air pressure switch designed for negative pressure sensing applications in high efficiency venting systems. Calibrated specifically to 1. 25" WC, this OEM component serves as a primary safety proving switch, ensuring the combustion blower is generating sufficient draft before the ignition sequence initiates. For veteran technicians, this 100233301 pressure