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or the diagnostic LED indicator remaining dark despite having 120V power at the board
Technicians can connect an LED to the D-terminal to diagnose issues like battery protection cutout
Maintains a stable pilot flame for consistent main burner ignition
it integrates temperature limit control
Lennox Y6606 Filter 326010-701 or the diagnostic LED indicatorThe Lennox Y6606 Healthy Climate Carbon Clean 16 is a high performance 20x21x5 MERV 16 furnace filter engineered for extreme filtration efficiency in residential and light commercial HVAC systems. This replacement air filter utilizes a deep pleated design to maximize surface area, ensuring a low pressure drop while maintaining a high Dust Holding Capacity (DHC). As a professional grade IAQ solution, it effectively captures 95% of particles down to 0.
