Arcoaire
Furnace

Model # GUJ125N20C2 Official Arcoaire furnace

Here are the diagrams and repair parts for Official Arcoaire GUJ125N20C2 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 61 parts  |

Cap Rnrd 1094956
#6

Unit parts diagram

Cap rnrd

Part #1094956

Replaced by #12908

?
Manufacturer substitution
This part replaces 1094956. Substitute parts can look different from the original.
This item is not returnable
$5.26
16% OFF Phone Price : $6.26
In Stock
Thermocouple 100243
#16

Unit parts diagram

Thermocouple

Part #100243

Replaced by #H06E-36

?
Manufacturer substitution
This part replaces 100243. Substitute parts can look different from the original.
This item is not returnable
$14.52
12% OFF Phone Price : $16.52
Back Order
N Gas Valve 1004612
#15

Unit parts diagram

N gas valve

Part #1004612

Replaced by #36C03-333

?
Manufacturer substitution
This part replaces 1004612. Substitute parts can look different from the original.
$277.97
$12.00 OFF Phone Price : $289.97
In Stock
Lp Gas Valve 1004613
#15A

Unit parts diagram

Lp gas valve

Part #1004613

Replaced by #36C03-333

?
Manufacturer substitution
This part replaces 1004613. Substitute parts can look different from the original.
$277.97
$12.00 OFF Phone Price : $289.97
In Stock
Blower Wheel 1009147
#2

Unit parts diagram

Blower wheel

Part #1009147

Replaced by #1011420

?
Manufacturer substitution
This part replaces 1009147. Substitute parts can look different from the original.
$160.43
7% OFF Phone Price : $172.43
In Stock
Limit Switch 1005549
#20

Unit 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
Heat Exch. A 231010105
#1

Unit parts diagram

Heat exch. a

Part #231010105

Replaced by #1014492

?
Manufacturer substitution
This part replaces 231010105. Substitute parts can look different from the original.
$809.06
$12.00 OFF Phone Price : $821.06
Back Order
Switch 1005548
#22

Unit parts diagram

Switch

Part #1005548

Replaced by #1013101

?
Manufacturer substitution
This part replaces 1005548. Substitute parts can look different from the original.
In Stock
Conv Kit 1160991

#NI

All parts diagram

Conv kit

Part #1160991

In Stock
Rail Galv Bl 57059
#EE

Unit parts diagram

Rail galv bl

Part #57059

In Stock

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.…