Lochinvar & A.O. Smith 100161835 Valve 320788-703 A veteran technician knows that

A veteran technician knows that a high limit switch failure often manifests as short-cycling or a blower fan that runs continuously

you must order the specific programmable control module (such as 10Y61 or 10M08) that matches your original part number

Durable Construction: Built with Class B insulation and ball bearings for high-temperature

or 5-2 scheduling with a 2-pipe fan coil changeover input for seasonal efficiency

making it a direct drop-in replacement for standard Honeywell Fire and Smoke Actuator retrofits

Lochinvar & A.O. Smith 100161835 Valve 320788-703 A veteran technician knows thatThe Lochinvar & A. O. Smith 100161835 Air Metering Valve is a critical component for maintaining the precise combustion air to fuel ratio in high efficiency condensing boilers and water heaters. Engineered for exact modulation, this venturi air valve ensures the burner receives the correct airflow required for stable ignition and optimal thermal efficiency. It is a direct OEM replacement part designed to interface seamlessly with the blower assembly