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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 for GUN100-4B Gas Furnace
Heat exchanger assembly diagram
Secondary He
Part #B18646-01
The manufacturer no longer makes this part, and there's no substitute part
Gas train diagram
Ignition Mod
Part #B13707-24
The manufacturer no longer makes this part, and there's no substitute part
Casing diagram
Casing Assembly
Part #18161-31S
The manufacturer no longer makes this part, and there's no substitute part
Misc. electrical/hardware diagram
Combustion A
Part #B18105-06
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
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
Gas train diagram
Gas Burner
Part #B18225-00
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
Heat exchanger assembly diagram
Upper Conn.
Part #B18103-00
The manufacturer no longer makes this part, and there's no substitute part
Blower assembly diagram
Blwr Asm,ser
Part #18682-05S
The manufacturer no longer makes this part, and there's no substitute part
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Repair time and Difficulty
45 minutes or less
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Repair time and Difficulty
45 minutes or less
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