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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
Misc. electrical/hardware diagram
Rubber Coupl
Part #B18104-00
The manufacturer no longer makes this part, and there's no substitute part
Casing diagram
Ctl Access D
Part #18813-13P
The manufacturer no longer makes this part, and there's no substitute part
Heat exchanger assembly diagram
Secondary Ai
Part #18224-11
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
Casing diagram
Control Acce
Part #18813-11P
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
Heat exchanger assembly diagram
Transfer Tub
Part #B18102-02
The manufacturer no longer makes this part, and there's no substitute part
Heat exchanger assembly diagram
Burner Box Wrapper (gus050-2, Gus075-3) Gasket Kit Should Be Ordered When Replacing These Parts
Part #18820-00
The manufacturer no longer makes this part, and there's no substitute part
Casing diagram
Casing Assembly
Part #18161-30S
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
Symptoms for electric ranges
Main causes: faulty surface element, burner control switch failure, temperature limiter not working properly, loose wiri…
Main causes: impact from dropping an item on the glass surface, ceramic glass surface flaw, surface element temperature …
Repair guides for electric ranges
How to replace an oven temperature sensor on an electric range
These step-by-step instructions guide you through replacing an oven temperature sensing probe.…
Repair time and Difficulty
15 minutes or less
How to replace an electric range oven control board
If the electronic oven control board isn't powering the bake and broil functions, you can replace it in less than half a…
Repair time and Difficulty
15 minutes or less
How to replace a range surface element control switch
The surface element control switch lets you turn the stovetop elements on and off, and to set the heat level. These step…
Repair time and Difficulty
15 minutes or less
Effective articles & videos to help repair your furnaces
Get expert tips for preparing your furnace for winter. Follow maintenance tips to keep your furnace in top shape.…
Find out how new DOE standards going into effect in 2023 can affect you and what you need to do.…
Get answers to frequently asked questions about Sears and Sears PartsDirect.…
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