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Goodman GUN100-4B gas furnace Parts
Here are the diagrams and repair parts for Goodman GUN100-4B gas furnace, as well as links to manuals and error code tables, if available.
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Browse Parts forGUN100-4B Gas Furnace
Heat exchanger assembly diagram
Secondary Air Door (gus100-4)
Part #18820-08
The manufacturer no longer makes this part, and there's no substitute part
Heat exchanger assembly diagram
Flue Collector (gun100-4b, Gus100-4)
Part #18812-15
The manufacturer no longer makes this part, and there's no substitute part
Heat exchanger assembly diagram
Comb Box Frt
Part #18820-14
The manufacturer no longer makes this part, and there's no substitute part
Heat exchanger assembly diagram
Compression
Part #B18100-02
The manufacturer no longer makes this part, and there's no substitute part
Heat exchanger assembly diagram
Flue Restrictor (gun100-4b, Gus100-4)
Part #18248-11S
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
Gas train diagram
Gas Burner
Part #B18225-00
The manufacturer no longer makes this part, and there's no substitute part
Gas train diagram
Manifold, 3
Part #B18264-17
The manufacturer no longer makes this part, and there's no substitute part
Misc. electrical/hardware diagram
Air Pressure
Part #B13701-07
The manufacturer no longer makes this part, and there's no substitute part
Gas train diagram
Burner Assembly
Part #B18225-12
The manufacturer no longer makes this part, and there's no substitute part
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