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or intermittent thermal overrides
35 PSI) to open and function correctly
it offers exact OEM compatibility and direct physical fitment
It is a factory authorized part
matching standard household and light commercial electrical footprints
Lochinvar & A.O. Smith 100188878 Fan Assembly 326058-757 or intermittent thermal overridesThe Lochinvar & A. O. Smith 100188878 Fan Assembly is a critical OEM replacement component engineered specifically for the FTX500 series high efficiency boilers. Designed to maintain precise combustion air ratios, this heavy duty blower ensures optimal airflow for FTX500L and FTX500N models. As a veteran technician knows, maintaining the correct static pressure within the combustion chamber is vital for system longevity and peak thermal efficiency.
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