High Carbon/Dust Capture: Efficiently traps large debris

preventing dielectric breakdown and arc-over in hot burner environments

the COL12849 provides a seamless drop-in fit for older or failed solenoids

pitting on the lug surfaces

If the high-limit switch fails or stays open

Lennox 71G17 Vent Switch High Carbon/Dust Capture: Efficiently trapsThe Lennox 71G17 Vent Switch is a critical safety component designed for precise thermal monitoring in high efficiency HVAC systems. Engineered as a 300F manual reset limit switch, this device serves as a primary defense against dangerous flue obstructions or heat exchanger failures. When vent temperatures reach the 300 degree Fahrenheit threshold, the internal circuit opens, instantly terminating the gas valve signal to prevent carbon monoxide