Lennox 95M54 Thermostat 321702-401 Regularly inspect for carbon buildup

Regularly inspect for carbon buildup or chemical "glazing

It includes the stem

When the internal sensor detects excessive ambient heat near the burner box—often caused by a cracked heat exchanger

Does this include the immersion well

the 98M85 features a durable electrode assembly construction capable of withstanding the rapid thermal expansion and harsh oxidation environments found in modern high-efficiency HVAC units

Lennox 95M54 Thermostat 321702-401 Regularly inspect for carbon buildupThe Lennox 95M54 Thermostat is a heavy duty defrost thermostat sensor engineered specifically for technical reliability in commercial HVAC systems and industrial refrigeration units. This single pole single throw (SPST) component serves as a critical defrost control, effectively managing crankcase heater cycles or defrost termination to prevent coil freeze up in air conditioners and heat pumps. Built with a 40 inch lead for versatile mounting, it