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Goodman GUS100-4 gas furnace Parts
Here are the diagrams and repair parts for Goodman GUS100-4 gas furnace, as well as links to manuals and error code tables, if available.
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Browse Parts for GUS100-4 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
Casing diagram
Casing Assembly
Part #18161-39S
The manufacturer no longer makes this part, and there's no substitute part
Blower assembly diagram
Blower Wheel
Part #B13680-34
The manufacturer no longer makes this part, and there's no substitute part
Blower assembly diagram
Blower Shell
Part #14393-77
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
Heat exchanger assembly diagram
Heat Exchange
Part #18212-28S
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
Burner Box T
Part #18823-01
The manufacturer no longer makes this part, and there's no substitute part
Blower assembly diagram
Blwr Asm,ser
Part #18682-00S
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
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Repair time and Difficulty
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The door gasket seals the gap around the door to keep the cold air in and the warm air out. Replace a worn or damaged do…
Repair time and Difficulty
15 minutes or less
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Learn how to replace the ice maker in a side-by-side refrigerator with these step-by-step instructions.…
Repair time and Difficulty
30 minutes or less
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