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GMC GMN100-4 gas furnace Parts
Here are the diagrams and repair parts for GMC GMN100-4 gas furnace, as well as links to manuals and error code tables, if available.
By Schematic
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Browse Parts for GMN100-4 Gas Furnace
Heat assembly/electrical diagram
Door Switch
Part #B13708-19
The manufacturer no longer makes this part, and there's no substitute part
Heat exchanger diagram
Door Handle
Part #18936-00
The manufacturer no longer makes this part, and there's no substitute part
Heat assembly/electrical diagram
5 Cl, Burner
Part #25130-03
The manufacturer no longer makes this part, and there's no substitute part
Heat assembly/electrical diagram
Furnace Burner Roll-out Limit Switch
Part #B13701-44
The manufacturer no longer makes this part, and there's no substitute part
Heat assembly/electrical diagram
Endcap Gaskt
Part #B28325-10
The manufacturer no longer makes this part, and there's no substitute part
Heat assembly/electrical diagram
End Cap
Part #B28650-06
The manufacturer no longer makes this part, and there's no substitute part
Heat assembly/electrical diagram
Coil/lower Inner Front Gasket, 21" (model Gmn100-4)
Part #828325-06
The manufacturer no longer makes this part, and there's no substitute part
Heat exchanger diagram
Heat Exchanger Sub Assembly, 5 Cell (model Gmn100-4)
Part #28213-028
The manufacturer no longer makes this part, and there's no substitute part
Heat assembly/electrical diagram
Screw
Part #B13935-15
The manufacturer no longer makes this part, and there's no substitute part
Heat exchanger diagram
Side Air Baf
Part #28162-00
The manufacturer no longer makes this part, and there's no substitute part
Symptoms for upright freezers
Main causes: clogged or frozen defrost drain tube…
Repair guides for upright freezers
How to replace a freezer electronic control board
The electronic control board manages the compressor to control freezer temperature. Replace the control board using the…
Repair time and Difficulty
45 minutes or less
How to replace a freezer thermistor
When the thermistor can’t sense the freezer temperature, the freezer is colder or warmer than the set temperature. Follo…
Repair time and Difficulty
45 minutes or less
How to replace a freezer door switch
When the door switch fails, the freezer can’t detect that the door is closed. Follow the steps in this repair guide to r…
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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