Lennox 74N47 HSI Ignitor Els PW 17895 and GS3 general purpose solenoid

and GS3 general purpose solenoid valves

Common Technician Questions: How do I know if the drain spud needs replacement

Safety Logic: The SPST configuration ensures the burner cannot fire if flue gas venting is obstructed

What are the signs that my Lochinvar 100208382 pressure switch is failing

Lennox 74N47 HSI Ignitor Els PW 17895 and GS3 general purpose solenoidThe Lennox 74N47 HSI Ignitor is a high performance, OEM grade hot surface ignitor specifically engineered for precision ignition in Lennox gas furnaces and condensing water boilers, including GWB9 series models. As a veteran technician knows, maintaining reliable combustion starts with a fast acting 120V element. This silicon carbide ignitor provides the necessary thermal mass to reach ignition temperatures rapidly, ensuring the gas valve opens to a