Lennox 20W36 Limit Switch 30067439-890 using this genuine OEM contactor

using this genuine OEM contactor is essential for maintaining precise control over electrical loads and ensuring the system operates within manufacturer specifications

Optimized Performance: Specifically calibrated for 3

technicians can maintain system integrity while minimizing downtime

The Lennox 72H29 is functionally identical to the 72H2901

This National Board certified valve is rated for a maximum temperature of 250°F and incorporates a stainless steel spring for consistent opening pressures in demanding HVAC steam applications

Lennox 20W36 Limit Switch 30067439-890 using this genuine OEM contactorThe Lennox 20W36 Limit Switch is a critical safety component designed for precise thermal regulation within Lennox residential furnace heating systems. Engineered as a 110 150F AUTO limit switch, this L150 40F thermal control monitors the heat exchanger temperature to prevent overheating conditions. When the high limit sensor detects temperatures exceeding the 150 degree threshold, it interrupts the burner circuit, resetting automatically once the