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Goodman
Furnace

Model # GMP125-4 Official Goodman gas furnace

Here are the diagrams and repair parts for Official Goodman GMP125-4 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 36 parts  |
Transformer B11416-00

#46

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Transformer

Part #B11416-00

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

Board 18099-13S

#47

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Board

Part #18099-13S

Replaced by #B1809913S

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Manufacturer substitution
This part replaces 18099-13S. Substitute parts can look different from the original.
This item is not returnable
$185.31 | 
6% OFF Phone Price : $197.31
In Stock
Flame Sensor B11726-06

#19

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Flame sensor

Part #B11726-06

$16.00 | 
11% OFF Phone Price : $18.00
In Stock
Vent Blr Asy 18590-05S

#13

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Vent blr asy

Part #18590-05S

Replaced by #B18590-05S

?
Manufacturer substitution
This part replaces 18590-05S. Substitute parts can look different from the original.
$261.53 | 
$12.00 OFF Phone Price : $273.53
In Stock
Furnace Blower Shell 25393-03

#37

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Furnace blower shell

Part #25393-03

Replaced by #0271A00016S

?
Manufacturer substitution
This part replaces 25393-03. Substitute parts can look different from the original.
$120.53 | 
9% OFF Phone Price : $132.53
In Stock
Gas Valve Hs B12826-14

#25

All parts diagram

Gas valve hs

Part #B12826-14

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

Furnace Burner Roll-out Limit Switch (replaces B13701-45, B1370154) B13701-54

#21

All parts diagram

Furnace burner roll-out limit switch (replaces b13701-45, b1370154)

Part #B13701-54

$18.99 | 
10% OFF Phone Price : $20.99
In Stock
Blower Wheel B13680-47

#36

All parts diagram

Blower wheel

Part #B13680-47

Replaced by #D6723306S

?
Manufacturer substitution
This part replaces B13680-47. Substitute parts can look different from the original.
$119.58 | 
9% OFF Phone Price : $131.58
In Stock
Chimney (gmp B25235-00

#41

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Chimney (gmp

Part #B25235-00

Replaced by #4053501S

?
Manufacturer substitution
This part replaces B25235-00. Substitute parts can look different from the original.
$48.49
In Stock
5 Cl, Burner 25135-03

#28

All parts diagram

5 cl, burner

Part #25135-03

Replaced by #0121F00159

?
Manufacturer substitution
This part replaces 25135-03. Substitute parts can look different from the original.
$68.11
In Stock

Symptoms for gas cooktops

Why won't my cooktop's gas burners ignite or spark?

Main causes: burner igniter switch failure, bad spark module, dirty or damaged spark electrode, wiring failure, lack of …

Read more

Why isn't my cooktop's gas burner heating properly?

Main causes: gas supply problem, faulty pressure regulator, clogs in burner or orifice, burner valve failure…

Read more

Why do my cooktop's spark igniters keep clicking?

Main causes: stuck burner igniter switch, wet igniter switch contacts, faulty spark module…

Read more

Repair guides for gas cooktops

How to replace a spark igniter switch on a gas cooktop

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…

Read more
Repair difficulty
Time required
 45 minutes or less
How to replace a spark module on a gas cooktop

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.…

Read more
Repair difficulty
Time required
 30 minutes or less

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How to get your furnace ready for winter

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Introducing new technical repair content that we’re developing for the Sears Technical Institute

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