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What causes a Lennox 18J37 to trip frequently
eliminating the need for a separate DIN rail socket in tight spaces
Utilizing a sensitive diaphragm element
replacing a damaged or illegible scaleplate is critical for maintaining accurate setpoint adjustments and system performance
Built to handle motor loads up to 14 FLA at 120V
Lennox 18K43 Limit Switch Els PW 17895 What causes a Lennox 18J37The Lennox 18K43 Limit Switch is a high temperature safety control engineered for precision in Lennox furnaces and heat pumps. This Normally Closed (NC) switch is designed to interrupt the ignition circuit upon detecting excessive temperatures, effectively protecting the heat exchanger from thermal stress. As a genuine Lennox OEM replacement part (also identified as Lennox 18K4301), it provides exact mechanical and electrical compatibility for a