Lochinvar & A.O. Smith 100278114 Sensor 321702-401 Common Questions Is this part

Common Questions Is this part compatible with standing pilot systems

this is a line voltage thermostat designed specifically for direct switching of high-voltage electric heating equipment

If the main ignition module has power but the status light board remains unresponsive

the operating handle and shaft are sold separately to allow for specific configuration needs

Lochinvar & A.O. Smith 100278114 Sensor 321702-401 Common Questions Is this partAs a seasoned technician, you know that accurate temperature feedback is the backbone of any high efficiency condensing boiler or water heater. The Lochinvar & A. O. Smith 100278114 Sensor is a critical 10k Ohm NTC thermistor designed for precision Domestic Hot Water (DHW) monitoring. This genuine OEM replacement part ensures the control board receives real time resistance data to modulate firing rates and maintain setpoint stability. Whether you are