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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.
By Schematic
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Browse Parts forGUN100-4B Gas Furnace
Casing diagram
Casing Assembly
Part #18161-39S
The manufacturer no longer makes this part, and there's no substitute part
Misc. electrical/hardware diagram
Air Pressure
Part #B13701-32
The manufacturer no longer makes this part, and there's no substitute part
Heat exchanger assembly diagram
Burner Box Wrapper (gus050-2, Gus075-3) Gasket Kit Should Be Ordered When Replacing These Parts
Part #18820-00
The manufacturer no longer makes this part, and there's no substitute part
Gas train diagram
Pilot Assembly
Part #14010-03S
The manufacturer no longer makes this part, and there's no substitute part
Casing diagram
Casing Assembly
Part #18161-30S
The manufacturer no longer makes this part, and there's no substitute part
Casing diagram
Casing Assembly
Part #18161-38S
The manufacturer no longer makes this part, and there's no substitute part
Heat exchanger assembly diagram
Secondary Air Door (gus075-3)
Part #18820-07
The manufacturer no longer makes this part, and there's no substitute part
Heat exchanger assembly diagram
Secondary Ai
Part #18820-09
The manufacturer no longer makes this part, and there's no substitute part
Casing diagram
Top Channel (gun125-5b, Gus125-5)
Part #18221-06S
The manufacturer no longer makes this part, and there's no substitute part
Heat exchanger assembly diagram
Flue Rstrctr
Part #18248-12S
The manufacturer no longer makes this part, and there's no substitute part
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