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Lochinvar & A.O. Smith 100093809 Natural Gas Door Switch 40S40/50T50

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Special Price $116.29 Regular Price $133.73
Out of stock
SKU
100093809
The Lochinvar & A.O. Smith 100093809 is a Natural Gas Door Switch which is an added safety measure meant for 40S40 and 50T50 Natural Gas Water Heaters. It means that the water heater works only when the access door is shut and there is no gas supply if the door is open. This switch assists in preventing the leakage of the dangerous gases and guaranteeing the right burning. Applicable to residential water heaters, it increases safety and system performance. Advantages are the increased protection and safety of the water heater, protection against malfunction, and maintenance of the right conditions for the water heater to last longer.
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HVAC Controls & Electrical, Switches,
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Specifications

  • Type: Natural Gas Door Switch
    Manufacturer Name: Lochinvar & A.O. Smith
    Product Number: 100093809
    OEM Part Number: 100093809
    Product Description: Door Switch Nat 40S40/50T50
    Weight:1.92lbs/870.9g

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    Product Questions (2)
    Customer Questions
    What maintenance is required for the Lochinvar & A.O. Smith 100093809 Natural Gas Door Switch?

    Regularly inspect the door switch for dust, corrosion, or loose connections to ensure proper operation. Test functionality periodically to verify it triggers correctly. Replace worn or damaged components immediately. Always follow safety protocols when working with gas-related equipment.

    What are common issues with the Lochinvar & A.O. Smith 100093809 Natural Gas Door Switch?

    • Failure to activate or respond properly.
    • Loose or damaged wiring connections.
    • Corrosion or buildup interfering with contact.
    • Intermittent or inconsistent switch operation.

    Installation Steps

    Step 1: Turn off gas supply and power to the appliance before installation.

    Step 2: Remove the existing door switch carefully from the mounting bracket.

    Step 3: Align the new switch with the bracket and secure with screws.

    Step 4: Connect wiring according to the appliance wiring diagram.

    Step 5: Test operation by closing the door and verifying the switch activates safely.