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Janitrol GUN125-5B gas furnace Parts
Here are the diagrams and repair parts for Janitrol GUN125-5B gas furnace, as well as links to manuals and error code tables, if available.
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Browse Parts for GUN125-5B Gas Furnace
Heat exchanger assembly diagram
Upper Conn.
Part #B18103-00
The manufacturer no longer makes this part, and there's no substitute part
Misc. electrical/hardware diagram
Vent Pipe &
Part #B18105-00
The manufacturer no longer makes this part, and there's no substitute part
Casing diagram
Furnace Blower Door
Part #18223-41
The manufacturer no longer makes this part, and there's no substitute part
Blower assembly diagram
Blower Wheel
Part #B13680-46
The manufacturer no longer makes this part, and there's no substitute part
Misc. electrical/hardware diagram
Timed Fan
Part #B18099-03
The manufacturer no longer makes this part, and there's no substitute part
Heat exchanger assembly diagram
Gasket Kit
Part #13926-103
The manufacturer no longer makes this part, and there's no substitute part
Misc. electrical/hardware diagram
Rubber Sleev
Part #B18104-01
The manufacturer no longer makes this part, and there's no substitute part
Blower assembly diagram
Motor
Part #B13400-12
The manufacturer no longer makes this part, and there's no substitute part
Heat exchanger assembly diagram
Flue Restrictor (gun050-2b, Gus050-2)
Part #18248-00S
The manufacturer no longer makes this part, and there's no substitute part
Heat exchanger assembly diagram
Hose Clamp #
Part #B18100-00
The manufacturer no longer makes this part, and there's no substitute part
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Repair time and Difficulty
15 minutes or less
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