Lennox 97J65 Limit Switch 322838-754 check for airflow restrictions like

check for airflow restrictions like a dirty air filter or blocked returns

Field-Adjustable Accuracy: Features Sight-Set calibration for rapid

Attempting to adjust the calibration can lead to hazardous combustion conditions and equipment damage

Proper installation of the water feeder orifice maintains the pressure differential required for the solenoid to cycle correctly

it features a high flow coefficient of 13 Cv

Lennox 97J65 Limit Switch 322838-754 check for airflow restrictions likeThe Lennox 97J65 Limit Switch is a critical safety component designed for precise thermal regulation within Lennox residential furnace units. Featuring a 150 180F AUTO temperature range, this primary limit control monitors heat exchanger temperatures to prevent thermal runaway. When the internal plenum temperature reaches the 180F cutout point, the switch opens the circuit to the gas valve, shutting down combustion while allowing the blower motor to