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Thermal Zone GD040M12A gas furnace

Thermal Zone GD040M12A gas furnace Parts

Here are the diagrams and repair parts for Thermal Zone GD040M12A gas furnace, as well as links to manuals and error code tables, if available.

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Browse Parts for GD040M12A Gas Furnace

  • J Trap Hard Tube for Thermal Zone GD040M12A - Part 663706

    90+ downflow furnace diagram

    J Trap Hard Tube

    Part #663706

    The manufacturer no longer makes this part, and there's no substitute part

  • Manifold for Thermal Zone GD040M12A - Part 663647

    90+ downflow furnace diagram

    Manifold

    Part #663647

    The manufacturer no longer makes this part, and there's no substitute part

  • Turbulator (not Shown) for Thermal Zone GD040M12A - Part D01220

    90+ downflow furnace diagram

    Turbulator (not Shown)

    Part #D01220

    The manufacturer no longer makes this part, and there's no substitute part

  • Heat Exchanger Assembly (not Shown) for Thermal Zone GD040M12A - Part D00601

    90+ downflow furnace diagram

    Heat Exchanger Assembly (not Shown)

    Part #D00601

    The manufacturer no longer makes this part, and there's no substitute part

  • Switch for Thermal Zone GD040M12A - Part 632205

    90+ downflow furnace diagram

    Switch

    Part #632205

    The manufacturer no longer makes this part, and there's no substitute part

  • Capacitor for Thermal Zone GD040M12A - Part 621433

    90+ downflow furnace diagram

    Capacitor

    Part #621433

    The manufacturer no longer makes this part, and there's no substitute part

  • Orifice, Inducer (not Shown) for Thermal Zone GD040M12A - Part 151881

    90+ downflow furnace diagram

    Orifice, Inducer (not Shown)

    Part #151881

    The manufacturer no longer makes this part, and there's no substitute part

Symptoms for gas cooktops

Main causes: burner igniter switch failure, bad spark module, dirty or damaged spark electrode, wiring failure, lack of …

Main causes: stuck burner igniter switch, wet igniter switch contacts, faulty spark module…

Main causes: gas supply problem, faulty pressure regulator, clogs in burner or orifice, burner valve failure…

Repair guides for gas cooktops

How to replace a spark module on a gas cooktop

How to replace a spark module on a gas cooktop

No flame on your gas cooktop? Installing a new spark module could be the fix you need.…

Repair time and Difficulty

 30 minutes or less
How to replace a spark igniter switch on a gas cooktop

How to replace a spark igniter switch on a gas cooktop

Follow these step-by-step instructions to fix the surface burner ignition system on your gas cooktop by replacing the sp…

Repair time and Difficulty

 45 minutes or less

Effective articles & videos to help repair your furnaces

How to get your furnace ready for winter

How to get your furnace ready for winter

Get expert tips for preparing your furnace for winter. Follow maintenance tips to keep your furnace in top shape.…

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.…

Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

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