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Janitrol GUN100-4B gas furnace Parts

Here are the diagrams and repair parts for Janitrol GUN100-4B gas furnace, as well as links to manuals and error code tables, if available.

Janitrol GUN100-4B gas furnace
By Schematic
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Browse Parts for GUN100-4B Gas Furnace

  • 5 Mfd 440/37 for Janitrol GUN100-4B - Part TRCF5

    Misc. electrical/hardware diagram

    Capacitor 5/

    Part #B9456-50

    Replaced by #TRCF5

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    Manufacturer substitution
    This part replaces B9456-50. Substitute parts can look different from the original.
    In Stock
    $29.15
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  • Transformer for Janitrol GUN100-4B - Part B11416-00

    Misc. electrical/hardware diagram

    Transformer

    Part #B11416-00

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

  • Central Air Conditioner Air Handler Blower Wheel for Janitrol GUN100-4B - Part B1368016S

    Blower assembly diagram

    Blower Wheel

    Part #B13680-16

    Replaced by #B1368016S

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    Manufacturer substitution
    This part replaces B13680-16. Substitute parts can look different from the original.
    In Stock
    $235.99
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  • Furnace Inducer Vent Motor Assembly for Janitrol GUN100-4B - Part B1859001S

    Misc. electrical/hardware diagram

    Furnace Inducer Vent Motor Assembly

    Part #B1859001S
    In Stock
    $1598.95
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  • Gas Valve for Janitrol GUN100-4B - Part 12826-06S

    Gas train diagram

    Gas Valve

    Part #12826-06S

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

  • Motor Run Capacitor for Janitrol GUN100-4B - Part 12908

    Blower assembly diagram

    Capacitor 10

    Part #B9456-52

    Replaced by #12908

    Info Icon
    Manufacturer substitution
    This part replaces B9456-52. Substitute parts can look different from the original.
    In Stock
    $98.90
    11% OFF Phone Price : $110.90Info Icon
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  • Furnace Blower Fan Wheel for Janitrol GUN100-4B - Part D6723306S

    Blower assembly diagram

    Blower Wheel

    Part #B13680-47

    Replaced by #D6723306S

    Info Icon
    Manufacturer substitution
    This part replaces B13680-47. Substitute parts can look different from the original.
    In Stock
    $150.10
    7% OFF Phone Price : $162.10Info Icon
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  • Furnace Range Burner Orifice for Janitrol GUN100-4B - Part B1789342

    Gas train diagram

    Gas Orifice

    Part #B17893-42

    Replaced by #B1789342

    Info Icon
    Manufacturer substitution
    This part replaces B17893-42. Substitute parts can look different from the original.
    In Stock
    $32.30
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  • Furnace Blower Fan Motor Housing for Janitrol GUN100-4B - Part 0271A00016S

    Blower assembly diagram

    Blower Shell

    Part #18393-00

    Replaced by #0271A00016S

    Info Icon
    Manufacturer substitution
    This part replaces 18393-00. Substitute parts can look different from the original.
    In Stock
    $136.57
    8% OFF Phone Price : $148.57Info Icon
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  • Furnace Temperature Limit Switch for Janitrol GUN100-4B - Part 1370906S

    Heat exchanger assembly diagram

    Limit, 150f,

    Part #B13700-06

    Replaced by #1370906S

    Info Icon
    Manufacturer substitution
    This part replaces B13700-06. Substitute parts can look different from the original.
    In Stock
    $108.62
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Symptoms for gas cooktops

Why won't my cooktop's gas burners ignite or spark?

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

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Why do my cooktop's spark igniters keep clicking?

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

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Why isn't my cooktop's gas burner heating properly?

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

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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.…

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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…

Read more

Repair time and Difficulty

 45 minutes or less

Effective articles & videos to help repair your furnaces

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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.…

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2023 HVAC regulation changes and how they may affect you

2023 HVAC regulation changes and how they may affect you

Find out how new DOE standards going into effect in 2023 can affect you and what you need to do.…

Read more
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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