Lennox 33W19 Pressure Switch 324846-701 A tripped switch usually indicates

A tripped switch usually indicates a cracked heat exchanger

Always verify that your system firmware is up to date to ensure seamless communication with new electronic expansion valve drivers

are calibrated specifically for your HVAC unit’s airflow and cabinet design

Its robust construction ensures stable performance against voltage fluctuations and mechanical vibration

and Carlyle compressors that utilize the three-pin terminal configuration standard to many residential and commercial condensing units

Lennox 33W19 Pressure Switch 324846-701 A tripped switch usually indicatesThe Lennox 33W19 Pressure Switch is a high precision, 2 stage dual pressure switch engineered for critical safety monitoring in gas furnaces and air handling units. This OEM component (part number 101599 03) features two independent, factory calibrated set points to ensure the inducer motor is moving the correct volume of air for safe combustion. The high stage set point is 1. 37" W. C. while the low stage set point is 0. 30" W. C., providing accurate