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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

  • 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

  • Exact Furn I for Janitrol GUN100-4B - Part IG412

    Gas train diagram

    Hot Surface

    Part #B14010-09

    Replaced by #IG412

    Info Icon
    Manufacturer substitution
    This part replaces B14010-09. Substitute parts can look different from the original.
    In Stock
    $29.09
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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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  • Heat Exchange for Janitrol GUN100-4B - Part 18212-30S

    Heat exchanger assembly diagram

    Heat Exchange

    Part #18212-30S

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

  • Motor Run Capacitor for Janitrol GUN100-4B - Part 12910

    Blower assembly diagram

    Capacitor 15

    Part #B9456-53

    Replaced by #12910

    Info Icon
    Manufacturer substitution
    This part replaces B9456-53. Substitute parts can look different from the original.
    In Stock
    $7.95
    11% OFF Phone Price : $8.95Info Icon
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  • Manifold, 2 for Janitrol GUN100-4B - Part B18264-16

    Gas train diagram

    Manifold, 2

    Part #B18264-16

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

  • Burner Assembly for Janitrol GUN100-4B - Part B18225-10

    Gas train diagram

    Burner Assembly

    Part #B18225-10

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

  • Manifold Bra for Janitrol GUN100-4B - Part 18159-01

    Heat exchanger assembly diagram

    Manifold Bra

    Part #18159-01

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

  • Burner Assembly for Janitrol GUN100-4B - Part B18225-11

    Gas train diagram

    Burner Assembly

    Part #B18225-11

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

  • Top Channel (gun125-5b, Gus125-5) for Janitrol GUN100-4B - Part 18221-06S

    Casing diagram

    Top Channel (gun125-5b, Gus125-5)

    Part #18221-06S

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

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Repair guides for top-mount refrigerators

How to replace the light switch in a top-freezer refrigerator

How to replace the light switch in a top-freezer refrigerator

The light switch turns the refrigerator light on and off and monitors door position. Replace the light switch if it does…

Repair time and Difficulty

 15 minutes or less
How to replace the water inlet valve in a top-freezer refrigerator

How to replace the water inlet valve in a top-freezer refrigerator

The water inlet valve controls water flow to the ice maker. Replace the water valve if it doesn't open or shut properly.…

Repair time and Difficulty

 15 minutes or less
How to replace the compressor run capacitor in a top-freezer refrigerator

How to replace the compressor run capacitor in a top-freezer refrigerator

The run capacitor sends electric current to the compressor motor to help the motor run efficiently. Replace the run capa…

Repair time and Difficulty

 15 minutes or less

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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

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