Model # GNJ125N20B1 Official ICP gas furnace

Here are the diagrams and repair parts for Official ICP GNJ125N20B1 gas furnace, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

Click a diagram to see the parts shown on that diagram.
In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

SEARCH WITHIN THIS MODEL

ALL PARTS

Showing 10 of 60 parts |

Functional replacement parts diagram

Cap rnrd

Part #1094956

Replaced by #12908

This item is not returnable

$5.26 |

16% OFF Phone Price : $6.26

In Stock

Qty

#NI

All parts diagram

Rail galv bl

Part #57059

$952.55

In Stock

Qty

#1A

Functional replacement parts diagram

Gskt htx bnr

Part #2480907

This item is not returnable

$7.46

In Stock

Qty

#1B

Functional replacement parts diagram

Front panel

Part #1008073

$404.72

In Stock

Qty

#10

Functional replacement parts diagram

Furnace burner

Part #1008726

$142.32

In Stock

Qty

Functional replacement parts diagram

Switch

Part #611872

$25.58

In Stock

Qty

#22

Non-functional replacement parts diagram

Panel cutoff

Part #721020008

$252.09

In Stock

Qty

Functional replacement parts diagram

Module

Part #1009947

Replaced by #1011671

$935.03

In Stock

Qty

#14

Non-functional replacement parts diagram

Filter rack

Part #741010039

Replaced by #741010039

$47.60

In Stock

Qty

#14

Functional replacement parts diagram

Sw lmt t rp

Part #1320362

Replaced by #1066427

$108.46

In Stock

Qty

Symptoms for top-mount refrigerators

Why is there water in the bottom of the fridge under vegetable drawers?

Main causes: frozen or clogged defrost drain tube, cracked water system tubing…

How to replace a refrigerator water valve

Replace the water valve that feeds water to the ice maker and water dispenser if it no longer controls the flow of water…

Repair difficulty

Time required

15 minutes or less

How to replace the evaporator fan motor in a top-freezer refrigerator

The evaporator fan motor blows air across the evaporator coils and through the refrigerator cabinet for cooling. Replace…

Repair difficulty

Time required

15 minutes or less

How to replace the compressor start relay in a top-freezer refrigerator

The compressor start relay starts the compressor and shuts it off if the motor overheats. Replace the start relay if it'…

Repair difficulty

Time required

15 minutes or less

Effective articles & videos to help repair your furnaces

View all

How to get your furnace ready for winter

Get expert tips for preparing your furnace for winter. Follow maintenance tips to keep your furnace in top shape.…

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

Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.…

Top questions about Sears and Sears PartsDirect

Model # GNJ125N20B1 Official ICP gas furnace

Model diagram and schematic

SEARCH WITHIN THIS MODEL

Symptoms for top-mount refrigerators

Why is there water in the bottom of the fridge under vegetable drawers?

Repair guides for top-mount refrigerators

How to replace a refrigerator water valve

How to replace the evaporator fan motor in a top-freezer refrigerator

How to replace the compressor start relay in a top-freezer refrigerator

Effective articles & videos to help repair your furnaces

How to get your furnace ready for winter

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

Top questions about Sears and Sears PartsDirect

Parts & More

Stay Connected

Quick links

Let us help you

More resources