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Janitrol GUPS120-4 gas furnace Parts

Here are the diagrams and repair parts for Janitrol GUPS120-4 gas furnace, as well as links to manuals and error code tables, if available.

Janitrol GUPS120-4 gas furnace
By Schematic
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Browse Parts for GUPS120-4 Gas Furnace

  • Manifold, 5 for Janitrol GUPS120-4 - Part B18264-03

    Gas train diagram

    Manifold, 5

    Part #B18264-03

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

  • Heat Exch Su for Janitrol GUPS120-4 - Part 18212-08S

    Heat exchanger assembly diagram

    Heat Exch Su

    Part #18212-08S

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

  • Secondary Air Door (gups1405) for Janitrol GUPS120-4 - Part 18224-20

    Heat exchanger assembly diagram

    Secondary Air Door (gups1405)

    Part #18224-20

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

  • Blwr Asm,ser for Janitrol GUPS120-4 - Part 18682-04S

    Blower assembly diagram

    Blwr Asm,ser

    Part #18682-04S

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

  • Secondary Ai for Janitrol GUPS120-4 - Part 18224-16

    Heat exchanger assembly diagram

    Secondary Ai

    Part #18224-16

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

  • Heat Exch Su for Janitrol GUPS120-4 - Part 18212-11S

    Heat exchanger assembly diagram

    Heat Exch Su

    Part #18212-11S

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

  • Blwr Asm,ser for Janitrol GUPS120-4 - Part 18682-00S

    Blower assembly diagram

    Blwr Asm,ser

    Part #18682-00S

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

  • Heat Exch Su for Janitrol GUPS120-4 - Part 18212-07S

    Heat exchanger assembly diagram

    Heat Exch Su

    Part #18212-07S

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

  • Heat Exch Su for Janitrol GUPS120-4 - Part 18212-02S

    Heat exchanger assembly diagram

    Heat Exch Su

    Part #18212-02S

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

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

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Repair time and Difficulty

 15 minutes or less

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