Armstrong Furnace R45407-001 Wire Harness Els PW 17895 Common signs include the furnace

Common signs include the furnace failing to ignite while the inducer motor is running

Replacing with a genuine 40L81 kit ensures long-term reliability and system safety

making it suitable for both hot water and steam systems

Reduced Maintenance Costs: Prevents avoidable motor burnouts

or if you see a diagnostic code for an open limit circuit

Armstrong Furnace R45407-001 Wire Harness Els PW 17895 Common signs include the furnaceThe Armstrong Furnace R45407 001 Wire Harness is a critical OEM replacement component engineered for precise electrical integration within Armstrong residential gas furnaces. Designed to maintain circuit integrity and reliable signal transmission between the integrated furnace control (IFC) board and peripheral components like the inducer motor, pressure switches, and gas valve, this harness ensures fail safe communication across the 24V control