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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.
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Browse Parts forGUN100-4B Gas Furnace
Gas train diagram
Gas Burner
Part #B18225-01
The manufacturer no longer makes this part, and there's no substitute part
Gas train diagram
Burner Assembly
Part #B18225-08
The manufacturer no longer makes this part, and there's no substitute part
Heat exchanger assembly diagram
Cover, Cumbu
Part #18820-16
The manufacturer no longer makes this part, and there's no substitute part
Heat exchanger assembly diagram
Flue Restrictor (gun075-3b, Gus075-3)
Part #18248-01S
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
Misc. electrical/hardware diagram
Vent/comb Ai
Part #B18105-07
The manufacturer no longer makes this part, and there's no substitute part
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
Gas train diagram
Manifold, 2
Part #B18264-12
The manufacturer no longer makes this part, and there's no substitute part
Heat exchanger assembly diagram
Secondary He
Part #B18646-02
The manufacturer no longer makes this part, and there's no substitute part
Misc. electrical/hardware diagram
Rubber Coupl
Part #B18104-00
The manufacturer no longer makes this part, and there's no substitute part
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