Lennox 83L76 Limit Switch 320074-702 allowing for superior dust-holding capacity

allowing for superior dust-holding capacity while maintaining a low pressure drop across the heat exchanger

ensure that bearing lock collars and setscrews are torqued to manufacturer specifications to prevent axial movement or vibration

eliminating the need to source individual seals for a standard rebuild

Using this on an LP system will cause dangerous over-firing and equipment damage

match the voltage to your system's power supply

Lennox 83L76 Limit Switch 320074-702 allowing for superior dust-holding capacityFor service technicians addressing furnace short cycling or thermal cutout issues, the Lennox 83L76 Limit Switch serves as a direct fit OEM replacement part designed for high limit circuit protection. This 140 180F AUTO limit switch is engineered with a calibrated bimetal snap disc that opens at 180F to prevent heat exchanger damage and automatically resets at 140F once the plenum temperature stabilizes. As a critical furnace safety sensor, it