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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
Hsi Module
Part #B18099-08Replaced by #B1809913S
Manufacturer substitutionThis part replaces B18099-08. Substitute parts can look different from the original.This item is not returnableIn Stock$336.81$12.00 OFF Phone Price : $348.81
Qty
Heat exchangers/misc.electrical diagram
Flame Sensor
In Stock$58.319% OFF Phone Price : $64.31QtyHeat exchangers/misc.electrical diagram
Gas Valve
Part #B12826-15
The manufacturer no longer makes this part, and there's no substitute part
Heat exchanger diagram
Furnace Access Door Latch
In Stock$27.84QtyHeat exchangers/misc.electrical diagram
Burner Side
Part #25140-00Replaced by #0121F00146
Manufacturer substitutionThis part replaces 25140-00. Substitute parts can look different from the original.In Stock$24.40QtyHeat exchangers/misc.electrical diagram
Transformer
Part #B11416-00
The manufacturer no longer makes this part, and there's no substitute part
Heat exchangers/misc.electrical diagram
Heat Exchange
Part #B28646-03Replaced by #2864607S
Manufacturer substitutionThis part replaces B28646-03. Substitute parts can look different from the original.In Stock$923.00QtyHeat exchangers/misc.electrical diagram
Hot Surface
Part #B14010-09SReplaced by #IG412
Manufacturer substitutionThis part replaces B14010-09S. Substitute parts can look different from the original.In Stock$29.09QtyHeat exchangers/misc.electrical diagram
Limit
Part #B13700-10Replaced by #1370910S
Manufacturer substitutionThis part replaces B13700-10. Substitute parts can look different from the original.In Stock$72.948% OFF Phone Price : $78.94QtyHeat exchangers/misc.electrical diagram
Capacitor 15
Part #B9456-53Replaced by #12910
Manufacturer substitutionThis part replaces B9456-53. Substitute parts can look different from the original.In Stock$7.9511% OFF Phone Price : $8.95Qty
Symptoms for gas grills
Choose a symptom to see related gas grill repairs.
Main cause: worn wheel…
Main causes: damaged or dirty flame tamers, corroded firebox, accumulated grease and debris in the grease pan…
Main causes: empty fuel tank, tripped flow-limiting device on the pressure regulator, faulty manifold valves, burner tub…
Main causes: nearly empty fuel tank, faulty pressure regulator, burner tube clogs, bad burner tube alignment to gas valv…
Main causes: clogged burner tubes, cracked insulators on igniter electrodes, wiring failures, bad ignition module, manif…
Repair guides for gas grills
These step-by-step repair guides will help you safely fix what’s broken on your gas grill.
How to replace a gas grill pressure regulator
You can install a new pressure regulator on your gas grill if the pressure regulator won’t let gas flow.…
Repair time and Difficulty
15 minutes or less
How to replace a gas grill igniter electrode
Replace the igniter electrode on your gas grill if it won’t light the burner.…
Repair time and Difficulty
15 minutes or less
How to replace a gas grill ignition module
Follow these steps to replace the ignition module if it doesn't produce a spark. …
Repair time and Difficulty
15 minutes or less
Effective articles & videos to help repair your furnaces
Use the advice and tips in these articles and videos to get the most out of your gas grill.
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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