Lennox 97L01 Limit Switch 326070-701 While this four-pole model can

While this four-pole model can handle fewer stages by leaving contacts unused

Check your blower wheel for debris to ensure an unobstructed load

or if you see visible corrosion or "welded" ports near the spark ignitor

This industrial-grade furnace cover serves as a critical vent terminal component

The mechanical dial provides straightforward adjustment

Lennox 97L01 Limit Switch 326070-701 While this four-pole model canThe Lennox 97L01 Limit Switch is a critical OEM replacement part engineered for precise thermal regulation in Lennox gas furnaces and air handlers. This L200 30F limit switch is designed to open the electrical circuit if the heat exchanger temperature exceeds its 200F setpoint, preventing mechanical failure and ensuring safe combustion cycles. With a 30F differential for automatic reset, it provides consistent high limit protection and prevents