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GMC GUN075-3B gas furnace Parts
Here are the diagrams and repair parts for GMC GUN075-3B gas furnace, as well as links to manuals and error code tables, if available.
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Browse Parts for GUN075-3B Gas Furnace
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
Misc. electrical/hardware diagram
Timed Fan
Part #B18099-03
The manufacturer no longer makes this part, and there's no substitute part
Casing diagram
Furnace Blower Door
Part #18223-40
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
Flue Collect
Part #18812-16
The manufacturer no longer makes this part, and there's no substitute part
Heat exchanger assembly diagram
Secondary He
Part #B18646-01
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
Gas train diagram
Manifold, 4
Part #B18264-14
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
Gas train diagram
Ignition Mod
Part #B13707-26
The manufacturer no longer makes this part, and there's no substitute part
Symptoms for electric ranges
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Repair guides for electric ranges
How to replace an oven temperature sensor on an electric range
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Repair time and Difficulty
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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.…
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