If the motor hums but fails to ramp up

The 7-inch insertion length is specified to ensure the sensor reaches the optimal thermal zone

critical for maintaining the operational integrity of the venting and combustion system

Common Questions How do I verify if the board is initiating a defrost cycle

Common Questions Is the bulb compatible with corrosive environments

Lochinvar & A.O. Smith 100171924 Valve THPU32HP7Y If the motor hums butThe Lochinvar & A. O. Smith 100171924 Gas Valve Kit is a critical OEM replacement component designed to restore precise fuel regulation in high efficiency condensing boilers and commercial water heaters. This negative pressure gas valve acts as the primary safety and modulation interface, responding to the blowers venturi suction to ensure the exact stoichiometric ratio for clean combustion. Specifically engineered as the updated replacement for the