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Lochinvar & A.O. Smith 100110771 Hot Surface Ignitor/Flame Sensor Assembly

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Special Price $139.28 Regular Price $160.17
In stock
SKU
100110771
The Lochinvar & A.O. Smith 100110771 Hot Surface Ignitor/Flame Sensor Assembly is a vital component of commercial and industrial HVAC applications. It controls the start and the running of the combustion process ensuring safe and efficient running. This assembly comprises a hot surface ignitor that produces a spark to ignite the fuel and a flame sensor that constantly checks the presence of flame. In case the flame is out, the sensor will quickly shut off the fuel to prevent the production of hazardous gases. The hot surface ignitor provides reliable and steady ignition and therefore the HVAC system starts and operates well.
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Heating & Furnace Parts, Ignitors & Ignition Assembly
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Specifications

  • Type: Hot Surface Ignitor/Flame Sensor Assembly
    Manufacturer Name: Lochinvar & A.O. Smith
    Product Number: 100110771
    OEM Part Number: 100110771
    Product Description: Hsi/Flame Sensor Assembly
    Weight:0.53lbs/240.4g

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    Product Questions (2)
    Customer Questions
    What maintenance is required for the Lochinvar & A.O. Smith 100110771 Hot Surface Ignitor/Flame Sensor Assembly?

    Regularly inspect the ignitor and flame sensor for soot, cracks, or wear. Clean the sensor rod gently using fine abrasive material to ensure proper flame detection. Check secure wiring connections and proper alignment. Always disconnect power before servicing to avoid electrical hazards.

    What are common issues with the Lochinvar & A.O. Smith 100110771 Hot Surface Ignitor/Flame Sensor Assembly?

    • Failure to ignite due to cracked or worn ignitor element.
    • Flame not detected causing system shutdown or short cycling.
    • Intermittent ignition performance from loose or faulty wiring.
    • Corroded or dirty flame sensor leading to inconsistent operation.

    Installation Steps

    Step 1: Turn off power and gas supply allow system to cool fully before servicing.

    Step 2: Remove access panel and locate the existing ignitor/flame sensor assembly.

    Step 3: Disconnect wiring harness carefully labeling connections to avoid errors.

    Step 4: Unscrew and replace with new ignitor/flame sensor assembly in correct position.

    Step 5: Reconnect wiring securely and ensure tight alignment of components.

    Step 6: Restore power and gas then test ignition cycle for proper flame sensing.