Lochinvar & A.O. Smith 100208639 Sensor 30067439-890 calibrated for natural gas applications

calibrated for natural gas applications within compatible Reznor heating units

normally open switch is engineered to detect specific vacuum thresholds

providing a universal fit for aging equipment

The cap protects the stainless steel pushpin during transit and installation

Lochinvar & A.O. Smith 100208639 Sensor 30067439-890 calibrated for natural gas applicationsAs a seasoned technician, you know that keeping a Lochinvar Knight boiler or A. O. Smith water heater running at peak efficiency requires precise data from the 100208639 Sensor. This OEM replacement temperature sensor is critical for monitoring inlet and outlet temperatures, ensuring the control board can accurately modulate the firing rate and maintain the correct delta T across the heat exchanger. When a 100208639 sensor fault occurs, it often