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GMC GMN120-5 gas furnace Parts
Here are the diagrams and repair parts for GMC GMN120-5 gas furnace, as well as links to manuals and error code tables, if available.
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Browse Parts for GMN120-5 Gas Furnace
Heat exchangers/misc.electrical diagram
Screw
Part #B28649-00
The manufacturer no longer makes this part, and there's no substitute part
Heat exchangers/misc.electrical diagram
Front Panel
Part #28301-03
The manufacturer no longer makes this part, and there's no substitute part
Heat exchangers/misc.electrical diagram
Inshot Brnr
Part #25227-03S
The manufacturer no longer makes this part, and there's no substitute part
Heat exchanger diagram
Top 24" Down
Part #25085-03P
The manufacturer no longer makes this part, and there's no substitute part
Heat exchanger diagram
Furnace Blower Door
Part #25223-03S
The manufacturer no longer makes this part, and there's no substitute part
Heat exchangers/misc.electrical diagram
Wire Harness
Part #28684-01
The manufacturer no longer makes this part, and there's no substitute part
Heat exchangers/misc.electrical diagram
Inr Frnt Pnl
Part #28215-03S
The manufacturer no longer makes this part, and there's no substitute part
Heat exchangers/misc.electrical diagram
Wire Harness
Part #28684-00
The manufacturer no longer makes this part, and there's no substitute part
Heat exchangers/misc.electrical diagram
Burner Box Bottom
Part #28130-04
The manufacturer no longer makes this part, and there's no substitute part
Heat exchangers/misc.electrical diagram
O-ring
Part #B28326-05
The manufacturer no longer makes this part, and there's no substitute part
Symptoms for gas cooktops
Main causes: burner igniter switch failure, bad spark module, dirty or damaged spark electrode, wiring failure, lack of …
Main causes: stuck burner igniter switch, wet igniter switch contacts, faulty spark module…
Main causes: gas supply problem, faulty pressure regulator, clogs in burner or orifice, burner valve failure…
Repair guides for gas cooktops
How to replace a spark module on a gas cooktop
No flame on your gas cooktop? Installing a new spark module could be the fix you need.…
Repair time and Difficulty
30 minutes or less
How to replace a spark igniter switch on a gas cooktop
Follow these step-by-step instructions to fix the surface burner ignition system on your gas cooktop by replacing the sp…
Repair time and Difficulty
45 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.…
Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.…
Get answers to frequently asked questions about Sears and Sears PartsDirect.…
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