ICP
Furnace

Model # NUGG125EF03 Official ICP upflow gas furnace

Here are the diagrams and repair parts for Official ICP NUGG125EF03 upflow 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

?

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

Search
ALL PARTS
Showing 10 of 96 parts  |

Capacitor 91593
#2A

Functional replacement parts diagram

Capacitor

Part #91593

Replaced by #12908

?
Manufacturer substitution
This part replaces 91593. Substitute parts can look different from the original.
This item is not returnable
$5.26
16% OFF Phone Price : $6.26
In Stock
Capacitor 613531
#2B

Functional replacement parts diagram

Capacitor

Part #613531

Replaced by #12910

?
Manufacturer substitution
This part replaces 613531. Substitute parts can look different from the original.
$8.37
11% OFF Phone Price : $9.37
In Stock
Furnace Temperature Limit Switch 1004304
#23A

Functional replacement parts diagram

Furnace temperature limit switch

Part #1004304

In Stock
Exchanger Ht 613815
#1B

Functional replacement parts diagram

Exchanger ht

Part #613815

In Stock
Switch 611872
#10

Functional replacement parts diagram

Switch

Part #611872

In Stock
Furnace Blower Fan Motor 613209
#7B

Functional replacement parts diagram

Furnace blower fan motor

Part #613209

$499.86
$12.00 OFF Phone Price : $511.86
In Stock
Switch 1004303
#23B

Functional replacement parts diagram

Switch

Part #1004303

In Stock
Board Termin 612254
#11

Functional replacement parts diagram

Board termin

Part #612254

In Stock
Furnace Blower Wheel 89726
#4C

Functional replacement parts diagram

Furnace blower wheel

Part #89726

$218.43
5% OFF Phone Price : $230.43
In Stock
Central Air Conditioner Air Handler Blower Wheel 96839
#4A

Functional replacement parts diagram

Central air conditioner air handler blower wheel

Part #96839

$148.95
7% OFF Phone Price : $160.95
In Stock

Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

Repair guides for gas walk-behind mowers

These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.

How to replace a lawn mower spark plug

How to replace a lawn mower spark plug

Take a few minutes to replace the spark plug during your lawn mower's annual tune-up or if the spark plug is burnt or cr…

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower blade

How to replace a lawn mower blade

Check your lawn mower blade regularly and replaced it if it's bent or damaged. …

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower flywheel key on a flathead engine

How to replace a lawn mower flywheel key on a flathead engine

When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. Learn how to re…

Repair difficulty
Time required
 45 minutes or less

Effective articles & videos to help repair your furnaces

Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

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.…