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An "OL" or infinite reading indicates an open winding that requires immediate replacement
ensuring a slip-free connection in demanding HVAC environments
this component is essential for technicians addressing furnace ignition failure or erratic burner behavior
Trips are typically caused by restricted airflow
Williams P322391 Thermocouple An "OL" or infinite readingThe Williams P322391 Thermocouple is a high output OEM replacement part designed for precision flame sensing in Williams wall furnaces. This specialized thermocouple with junction box serves as the direct updated version for P321828, providing a seamless retrofit for older pilot assemblies. As a veteran grade furnace safety component, it features an integrated vent limit switch and a robust terminal block transition, ensuring the millivolt signal is