Lochinvar & A.O. Smith 100208558 Sensor 321894-708 avoid touching the element to

avoid touching the element to prevent skin oils from creating hot spots that lead to premature stress and failure

For technicians asking how to install a 480V York crankcase heater

flue blockages

this model (KCE) is specifically charged with POE oil

Lochinvar & A.O. Smith 100208558 Sensor 321894-708 avoid touching the element toThe Lochinvar & A. O. Smith 100208558 Sensor is a critical premix gas air arm sensor designed for high efficiency combustion systems. This OEM replacement part is engineered to monitor the air fuel ratio within the burner assembly, ensuring precise modulation and optimal thermal efficiency. As a high limit outlet sensor, it provides real time data to the control board to prevent overheating and maintain safe boiler operation. Constructed from