Lochinvar & A.O. Smith 100109151 Switch 326058-758 the unit should be mounted

the unit should be mounted on a vertical surface with the 1/4" brass hose barb pointing either left or right

Can I clean this probe instead of replacing it

Always verify your specific wiring diagram to ensure the ignitor voltage matches the module's output capability

When replacing the pilot assembly

While designed by Honeywell

Lochinvar & A.O. Smith 100109151 Switch 326058-758 the unit should be mountedThe Lochinvar & A. O. Smith 100109151 is a critical safety component designed for high efficiency BTH (Best Tankless Hybrid) water heaters and commercial boilers. This Low Gas Pressure Switch is factory calibrated to a 5" WC (Water Column) set point, serving as a primary sentry to ensure safe combustion cycles. In the field, this switch monitors the incoming gas supply pressure to prevent the burner from firing under insufficient pressure conditions,