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GMC
Furnace

Model # GMN120-5 Official GMC gas furnace

Here are the diagrams and repair parts for Official GMC GMN120-5 gas furnace, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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Showing 10 of 66 parts  |
Hsi Module B18099-08
#40

Heat exchangers/misc.electrical diagram

Hsi module

Part #B18099-08

Replaced by #B1809913S

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Manufacturer substitution
This part replaces B18099-08. Substitute parts can look different from the original.
This item is not returnable
$185.31 | 
6% OFF Phone Price : $197.31
In Stock
Capacitor 15 B9456-53
#38

Heat exchangers/misc.electrical diagram

Capacitor 15

Part #B9456-53

Replaced by #12910

?
Manufacturer substitution
This part replaces B9456-53. Substitute parts can look different from the original.
$8.37 | 
11% OFF Phone Price : $9.37
In Stock
Hot Surface B14010-09S
#4

Heat exchangers/misc.electrical diagram

Hot surface

Part #B14010-09S

Replaced by #41-412

?
Manufacturer substitution
This part replaces B14010-09S. Substitute parts can look different from the original.
$49.15 | 
11% OFF Phone Price : $55.15
In Stock
Flame Sensor B11726-06
#5

Heat exchangers/misc.electrical diagram

Flame sensor

Part #B11726-06

$16.00 | 
11% OFF Phone Price : $18.00
In Stock
Transformer B11416-00
#34

Heat exchangers/misc.electrical diagram

Transformer

Part #B11416-00

The manufacturer no longer makes this part, and there's no substitute part

Burner Side 25140-00
#3

Heat exchangers/misc.electrical diagram

Burner side

Part #25140-00

Replaced by #0121F00146

?
Manufacturer substitution
This part replaces 25140-00. Substitute parts can look different from the original.
This item is not returnable
$6.57
Back Order
Gas Valve B12826-15
#8

Heat exchangers/misc.electrical diagram

Gas valve

Part #B12826-15

The manufacturer no longer makes this part, and there's no substitute part

Limit B13700-10
#11

Heat exchangers/misc.electrical diagram

Limit

Part #B13700-10

Replaced by #1370910S

?
Manufacturer substitution
This part replaces B13700-10. Substitute parts can look different from the original.
$55.18 | 
10% OFF Phone Price : $61.18
In Stock
Heat Exchange B28646-03
#22

Heat exchangers/misc.electrical diagram

Heat exchange

Part #B28646-03

Replaced by #2864607S

?
Manufacturer substitution
This part replaces B28646-03. Substitute parts can look different from the original.
$771.18
In Stock
Furnace Blower Assembly 28682-03S
#13

Heat exchanger diagram

Furnace blower assembly

Part #28682-03S

The manufacturer no longer makes this part, and there's no substitute part

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