Facebook Pixel
Sign-Up Bonus
Get 500 Reward Points instantly when you join.
Redeem Instantly
50 points = $1 off at checkout.
Earn as You Shop
$1 spent = 1 point every time you order.
Member Perks
Unlock exclusive member-only savings and offers.

Register and Earn 500 Reward Points
Toggle Nav
Search
Toggle Nav
Join Our Loyalty Program
main product photo

Lennox 27A07 DSI Ignition Control Board

Be the first to review this product
Special Price $279.56 Regular Price $462.95
In stock
SKU
27A07
The Lennox 27A07 DSI Ignition Control Board is an electronic operating component used to manage direct-incompatible heating equipment. It processes input from connected sensors and systems, then coordinates the sequence of burner and flame verification during startup and normal operation. The board continuously monitors system status and responds to conditions based on programmed logic and control parameters. In HVAC systems, it is installed within the electrical compartment, where it manages communication between related components, supports structured firing sequences, and helps maintain consistent operational performance throughout the heating cycle.
Add to Wish List
HVAC Controls & Electrical, Control Boards & Modules
Manufacturer:
https://www.partshnc.com/media/catalog/product/2/7/27a07.jpg

Specifications

  • Type: DSI Ignition Control Board
    Write Your Own Review
    You're reviewing:Lennox 27A07 DSI Ignition Control Board
    Your Rating
    Product Questions (2)
    Customer Questions
    What maintenance is required for the Lennox 27A07 Ignition Control Board?

    Regularly inspect the board for dust, debris, or corrosion on terminals. Ensure all wiring connections are secure and intact. Clean gently with a soft brush if necessary. Always disconnect power before servicing to prevent electrical hazards.

    What are common issues with the Lennox 27A07 Ignition Control Board?

    • Failure to ignite the burner.
    • Intermittent or erratic ignition signals.
    • Burnt or corroded terminals.
    • Faulty sensors or wiring connections.

    Installation Steps

    Step 1: Turn off power to the furnace to prevent electric shock.

    Step 2: Open the furnace control panel and disconnect wiring from the existing ignition board.

    Step 3: Remove the old DSI ignition control board carefully.

    Step 4: Mount the new board in the same position, ensuring proper alignment.

    Step 5: Reconnect all wiring according to the manufacturer’s diagram.

    Step 6: Restore power and test the furnace to confirm proper ignition and operation.