Lochinvar & A.O. Smith 100233489 Ventilation Fan 30067439-890 If cleaning doesn't resolve it

If cleaning doesn't resolve it

the unit staying in defrost mode for more than 15 minutes

and HVACR applications like refrigeration units and cooling towers rather than direct human consumption lines

this unit features a flat tip style optimized for rapid heat-up and reliable ignition in residential and commercial environments

Lochinvar & A.O. Smith 100233489 Ventilation Fan 30067439-890 If cleaning doesn't resolve itThe Lochinvar & A. O. Smith 100233489 Ventilation Fan is a critical OEM replacement component designed for high efficiency boiler and water heater combustion systems. This axial fan assembly, also identified by part numbers FAN2027 and FAN2027K, operates on 115VAC power at 50 60Hz. As a veteran grade ventilation fan replacement, it facilitates the precise movement of air into the combustion chamber while ensuring the safe extraction of flue gases.