Arcoaire
Furnace

Model # GUJ125N20B1 Official Arcoaire furnace

Here are the diagrams and repair parts for Official Arcoaire GUJ125N20B1 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

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 63 parts  |

Furnace Burner 1008726

#12

All parts diagram

Furnace burner

Part #1008726

In Stock
Tubing 64930

#11

All parts diagram

Tubing

Part #64930

In Stock
Switch Doo 1010712

#3

All parts diagram

Switch doo

Part #1010712

In Stock
Panel Cutoff 721020008

#CC

All parts diagram

Panel cutoff

Part #721020008

In Stock
Furnace Blower Comb 1010239

#19

All parts diagram

Furnace blower comb

Part #1010239

In Stock
Gskt Htx Bnr 2480907

#F

All parts diagram

Gskt htx bnr

Part #2480907

This item is not returnable
In Stock
Rail Galv Bl 57059

#EE

All parts diagram

Rail galv bl

Part #57059

In Stock
Limit Switch 1005549

#20

All parts diagram

Limit switch

Part #1005549

Replaced by #1013102

?
Manufacturer substitution
This part replaces 1005549. Substitute parts can look different from the original.
$15.62
11% OFF Phone Price : $17.62
In Stock
Filter Rack 741010039

#U

All parts diagram

Filter rack

Part #741010039

Replaced by #741010039

?
Manufacturer substitution
This part replaces 741010039. Substitute parts can look different from the original.
In Stock
Switch 1005548

#22

All parts diagram

Switch

Part #1005548

Replaced by #1013101

?
Manufacturer substitution
This part replaces 1005548. Substitute parts can look different from the original.
In Stock

Symptoms for electric ranges

Main causes: faulty surface element, burner control switch failure, temperature limiter not working properly, loose wiri…

Main causes: impact from dropping an item on the glass surface, ceramic glass surface flaw, surface element temperature …

Repair guides for electric ranges

How to replace a range hidden bake element

How to replace a range hidden bake element

These step-by-step instructions guide you through replacing the oven hidden bake element in an electric range.…

Repair difficulty
Time required
 30 minutes or less
How to replace an electric range oven door outer glass panel

How to replace an electric range oven door outer glass panel

Learn how to replace a damaged outer window panel on your oven door with these step-by-step instructions. …

Repair difficulty
Time required
 45 minutes or less
How to replace a range glass cooktop

How to replace a range glass cooktop

These step-by-step instructions explain how to replace a damaged ceramic glass cooktop on an electric range. …

Repair difficulty
Time required
 45 minutes or less

Effective articles & videos to help repair your furnaces

How to get your furnace ready for winter

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

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

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…