Lennox 83L83 Limit Switch Automatic Reset Logic: Eliminates manual

Automatic Reset Logic: Eliminates manual resets by restoring circuit continuity once temperatures drop below the 170°F cutout point

or clogged filters—the switch breaks the electrical circuit to the gas valve

Precision Calibration: Pre-set to

Bypassing a flame rollout switch is dangerous and violates safety codes

Lennox 83L83 Limit Switch Automatic Reset Logic: Eliminates manualThe Lennox 83L83 Limit Switch is a critical safety component designed for precise thermal regulation within residential gas furnaces. As a genuine Lennox OEM replacement part, this auto reset limit switch is engineered to open the electrical circuit to the gas valve if the plenum temperature exceeds the 180F safety threshold, preventing heat exchanger damage. Once the temperature drops to approximately 150F, the switch automatically closes to resume