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Nordyne 626421R Hot Surface Ingnition Control Board

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Special Price $187.40 Regular Price $215.51
In stock
SKU
626421R
The Nordyne 626421R Hot Surface Ignition Control Board is a component that is essential for any gas heat equipment of HVAC. It controls the ignition process so that improved and optimal operation may be achieved. Like many other board, it uses Hot Surface Ignition technology, which is safe and efficient as compared to pilot lights. As it has been postulated in the HSI approach the ceramic surface is heated up to the ignition temperature of the gas and thus dispenses with the need for a sustained flame. This control board is designed to work with a large range of Nordyne HVAC products including furnaces and heaters.
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HVAC Controls & Electrical, Control Boards & Modules
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Specifications

  • Type: Ingnition Control Board
    Manufacturer Name: Nordyne
    Product Number: 626421R
    OEM Part Number: 626421R
    Product Description: Hsi Control Board
    Weight:0.52lbs/235.87g

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    Product Questions (2)
    Customer Questions
    What maintenance is required for the Nordyne 626421R Ignition Control Board?

    Inspect the control board periodically for loose wiring connections, corrosion, burned terminals, or signs of overheating. Verify that all electrical connections remain secure and that the furnace compartment stays clean and dry. Always disconnect power before handling the board to prevent electrical shock.

    What are common issues with the Nordyne 626421R Ignition Control Board?

    • Fault codes, lockouts, or communication errors.
    • Overheating or random shutdown events issues.
    • No ignition or failure to start.
    • Intermittent heating or cycling irregularities.
    • Burnt relays, blown fuse, or electrical failure.

    Installation Steps

    Step 1: Turn off power and gas supply to furnace and verify no voltage using a multimeter.

    Step 2: Remove access panel and carefully disconnect wiring from old ignition control board, labeling each connection.

    Step 3: Install new board securely in same mounting position and ensure proper grounding connection.

    Step 4: Reconnect wiring exactly as labeled, checking for tight, correct terminal placement.

    Step 5: Restore power and test ignition cycle; observe for safe startup and normal operation.