Lennox 17W82 Control Board

The Lennox 17W82 Control Board (LB-91097C) is a critical OEM ignition control replacement kit designed to upgrade and restore functionality to Lennox gas furnaces utilizing older EGC-1 or EGC-2 modules. This 24V microprocessor-based board manages the direct spark ignition (DSI) sequence, ensuring precise timing for the combustion air blower, gas valve, and indoor fan. As a veteran-grade furnace circuit board replacement, it includes the 100980-01 ignition control, a 50-inch spark wire (73K7601), and a continuous fan jumper to accommodate various legacy configurations, including 80MGF and G24M series units.

When performing a Lennox HVAC control board troubleshooting procedure, this kit resolves common failure points such as weak high-voltage ignition output or internal self-check errors. The board incorporates diagnostic LED indicators to streamline field repairs, allowing contractors to quickly identify pressure switch delays or limit circuit opens. Given its high Lennox furnace parts compatibility, this 17W82 ignition module is the standard professional choice for replacing obsolete part numbers like 17L96, 76K21, and LB-91097A/B across Allied Air, Armstrong, and Ducane equipment.

Key Benefits

• Broad Compatibility: Engineered as a direct OEM replacement for legacy EGC series controls in Lennox, Armstrong, and Ducane gas units.
• Enhanced Reliability: Features advanced microprocessor logic to maintain stable ignition control and efficient combustion cycles.
• Technical Support: Integrated diagnostic LEDs provide real-time fault codes for faster system recovery and reduced downtime.
• Complete Kit: Includes the necessary 50" spark wire and installation jumper, eliminating the need for separate component sourcing.

Common Questions

• Can this board replace both EGC-1 and EGC-2 modules? Yes, the 17W82 kit is specifically designed to convert both older EGC-1 and EGC-2 systems to the current EGC-1 standard.
• What does error code 203 mean on newer Lennox boards? While this legacy board uses LED pulses, many Lennox furnace control boards require proper configuration of the size code to match the furnace BTU and blower capacity to avoid 203 alerts.
• Do I need to replace the spark wire during installation? It is highly recommended to use the included 73K7601 ignition wire to ensure proper insulation and high-voltage delivery to the igniter.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.