Lennox 21J99 Control Board

DSI CONTROL BOARD

Lennox 21J99 Direct Spark Ignition (DSI) Control Board – OEM Replacement

Upgrade your Lennox heating system with the Lennox 21J99 DSI Control Board, a reliable and durable replacement part designed to keep your Direct Spark Ignition (DSI) system running efficiently. This official OEM control board ensures precise ignition control, enhancing the performance and safety of your Lennox furnace or HVAC equipment.

Key Features:

• Brand: Lennox – genuine OEM part

• Catalog Number: 21J99

• Model/Part Number: 105802-02

• Type: Direct Spark Ignition (DSI) Control Board

• Base Unit of Measure: Unit(s)

• EAN/UPC: 66255156276

• Reliable Ignition Control: Ensures smooth and consistent spark ignition for your heating system

• Easy Replacement: Direct fit for Lennox units, compatible with DSI furnaces

Why Choose the Lennox 21J99 Control Board:
This control board is designed for durability and long-lasting performance. Perfect for homeowners and HVAC technicians looking for a trustworthy replacement, it guarantees your system maintains optimal heating efficiency and safety.

Compatibility:
Works with Lennox furnaces equipped with Direct Spark Ignition (DSI) systems. Always verify your model number before purchase to ensure proper fit.

Invest in a dependable Lennox replacement part today to restore your system’s reliability and peace of mind.