Lochinvar & A.O. Smith 100112429 Switch 326058-756 Ensure the sight pipe is

Ensure the sight pipe is clean and consider using an insulation mount to prevent thermal conductivity

Simplified Two-Wire Setup: Streamlines the installation process and reduces the risk of miswires on busy service calls

the Aaon R78310 assembly integrates a precision-balanced fan and motor to maintain steady airflow while significantly reducing operational noise

85" WC to match specific Goodman furnace specifications

What oil is factory-charged in the MT64-3VI

Lochinvar & A.O. Smith 100112429 Switch 326058-756 Ensure the sight pipe isThe Lochinvar & A. O. Smith 100112429 Blocked Flue Switch is a critical safety component designed for high efficiency water heaters and commercial boilers. As a normally closed thermal switch, it monitors the venting system for atmospheric pressure imbalances or physical obstructions that could lead to dangerous carbon monoxide accumulation. Engineered for precision, this OEM replacement part triggers a system shutdown if it detects flue gas backup,