Lennox 72H02 Prefilter Common indicators include the system

Common indicators include the system failing to start despite a call for cooling/heating or short-cycling due to inaccurate thermal sensing

Key Benefits Precision Thermal Calibration: Engineered with a fixed 225°F open and 145°F close setpoint for consistent safety response

This is typically caused by a dirty flame sensor or a faulty gas valve

Aeronautical-Grade Sealing: High-quality elastomer material prevents air and fluid bypass in the collector assembly

Lennox 72H02 Prefilter Common indicators include the systemThe Lennox 72H02 Prefilter is a critical OEM replacement air filter designed for high efficiency electronic air cleaners. As a veteran grade aluminum mesh pre filter, this component serves as the primary line of defense, capturing large airborne particulates before they reach the electronic cells or primary media. This configuration is essential for maintaining the MERV rating integrity of the system and optimizing overall airflow. Measuring