Description
The Lennox 63W27 is a factory-specified 2 Stage Ignition Control module engineered to deliver accurate, dependable ignition sequencing for compatible Lennox heating systems. Designed as a direct OEM replacement, this control board manages the two-stage ignition process to ensure safe, consistent furnace startup and reliable burner operation across both low- and high-fire stages.
Key Features
- Two-stage ignition control for precise low- and high-fire sequencing
- Direct OEM replacement for compatible Lennox furnace models
- Engineered to Lennox factory specifications for reliable performance
- Helps maintain efficient combustion and consistent heat output
- Supports safe ignition sequencing with built-in control logic
Why Choose the Lennox 63W27?
As a genuine Lennox OEM ignition control, the 63W27 ensures your furnace operates exactly as designed. Two-stage ignition technology allows the system to run at a lower capacity during mild conditions and ramp up to full capacity when demand increases — improving comfort, efficiency, and equipment longevity. Replacing a faulty ignition control with the correct OEM part eliminates compatibility guesswork and restores system performance quickly.
Application
- Compatible with select Lennox two-stage gas furnaces
- Ideal for HVAC technicians performing service or warranty repairs on Lennox equipment
- Recommended for use with Lennox-approved replacement parts and procedures
Specifications
- Brand: Lennox
- Part Number / SKU: 63W27
- Control Type: 2 Stage Ignition Control
- Application: Lennox Compatible Gas Furnaces







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