Replacement Control Board

The Lennox 19W94 is a premium ignition control conversion kit engineered for reliable spark ignition in compatible Lennox gas furnaces. This direct replacement component (also referenced as LB-84495B or NCO-19W94) utilizes advanced spark technology to ensure efficient and safe burner ignition while preventing accidental gas ignition through integrated safety features. Built with durable construction designed to withstand demanding HVAC environments, this control board extends equipment life and reduces overall energy consumption. The 19W94 serves as a direct replacement for legacy ignition control modules including 33J62, 65K07, LB-84495A/B, 20J80, and 20J8001 components. Its broad compatibility extends across multiple furnace brands including Lennox, Allied, Armstrong, Concord, and Ducane units. Ideal for HVAC technicians and facility managers performing furnace maintenance, upgrades, or emergency repairs, this ignition control conversion kit delivers consistent performance and reliability for commercial and residential heating applications. Installation of this component restores furnace functionality while maintaining manufacturer safety standards and operational efficiency.