the flame sensor is likely failing to send a sufficient microamp signal to the control board due to soot or oxidation

What is the purpose of the third terminal (M4)

Common Questions & Technical Support Is the wire harness included with this model

What is the significance of the blue color coding

The Lennox 10Y59 is a high-performance 5

Hoffman Specialty 401629 Thermostatic Steam Trap Els PW 29614 the flame sensor is likelyThe Hoffman Specialty 401629 Thermostatic Steam Trap is a heavy duty Series H Float and Thermostatic Trap designed for rigorous condensate management in low pressure steam systems. This 2 inch NPT steam trap features a robust cast iron body and a . 687 inch orifice, engineered to handle a maximum operating pressure of 15 PSI with a discharge capacity of up to 9,800 lbs hr. As the high capacity FT015H 8 model, it serves as the direct replacement for