Lennox 25W89 Burner Cover Refrigerant Precision Filtration: Captures harmful debris

Precision Filtration: Captures harmful debris down to 4 microns to protect high-speed compressor internals

or specific fault codes on the control board indicating a thermistor short or open circuit

focusing purely on high-stability temperature regulation and streamlined HVAC mechanical control in warehouses

Durable Construction: Built to withstand the thermal cycling and humidity levels common in high-efficiency mechanical systems

Common Questions and Troubleshooting What is the difference between a GMQ and a GLQ fuse

Lennox 25W89 Burner Cover Refrigerant Precision Filtration: Captures harmful debrisThe Lennox 25W89 Burner Cover (also identified by manufacturer reference LB 109746) is a high grade OEM replacement part engineered for Lennox residential and light commercial gas furnaces. Fabricated from high temperature resistant metal alloy, this furnace burner cap is critical for maintaining flame characteristics and ensuring clean combustion. Its precise design prevents flame rollout and air leakage, which directly optimizes combustion