Lennox 36K28 Limit Switch 30067439-890 2 Cv Rating

2 Cv Rating

Universal Compatibility: Specifically designed as the drop-in Erie 30-118-A replacement for AG series actuators and Classic G/L dampers

any unused speed taps must be individually capped with wire nuts or heat shrink to prevent shorting against the motor shell or blower housing

Improved Signal Accuracy: Ensures stable flame rectification signals (µA) to prevent intermittent system lockouts and furnace short-cycling

the high-tension lead may be failing to carry the necessary voltage

Lennox 36K28 Limit Switch 30067439-890 2 Cv RatingThe Lennox 36K28 is a critical safety component designed for precise thermal regulation within residential and light commercial Lennox furnace systems. This automatic limit switch is engineered to monitor heat exchanger temperatures, effectively interrupting the burner circuit if internal conditions exceed the safety threshold. Operating with a fixed range of 160 190F, it provides a vital fail safe against overheating caused by restricted airflow or