ICP
Furnace

Model # NNCU125AK01 Official ICP condensing gas furnace

Here are the diagrams and repair parts for Official ICP NNCU125AK01 condensing 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 91 parts  |

Module 1005651
#4

Functional replacement diagram

Module

Part #1005651

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

Control Elec 1005229
#3

Functional replacement diagram

Control elec

Part #1005229

Replaced by #7070

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Manufacturer substitution
This part replaces 1005229. Substitute parts can look different from the original.
$86.18
7% OFF Phone Price : $92.18
In Stock
Capacitor 1006176
#12

Functional replacement diagram

Capacitor

Part #1006176

Replaced by #12910

?
Manufacturer substitution
This part replaces 1006176. Substitute parts can look different from the original.
$8.37
11% OFF Phone Price : $9.37
In Stock
Tee Male 612696
#39

Functional replacement diagram

Tee male

Part #612696

In Stock
Control Limi 1007375
#8

Functional replacement diagram

Control limi

Part #1007375

In Stock
Furnace Blower Wheel 89726
#9

Functional replacement diagram

Furnace blower wheel

Part #89726

$218.43
5% OFF Phone Price : $230.43
In Stock
Trap Vent 1008251
#42

Functional replacement diagram

Trap vent

Part #1008251

In Stock
Adapter 1000471
#2

Non-functional replacement diagram

Adapter

Part #1000471

In Stock
Furnace Fan Control Relay 1000742
#14

Functional replacement diagram

Furnace fan control relay

Part #1000742

$35.62
14% OFF Phone Price : $41.62
In Stock
Furnace Burner Roll-out Limit Switch 522559
#28

Functional replacement diagram

Furnace burner roll-out limit switch

Part #522559

$31.84
16% OFF Phone Price : $37.84
In Stock

Symptoms for gas grills

Choose a symptom to see related gas grill repairs.

Main causes: empty fuel tank, tripped flow-limiting device on the pressure regulator, faulty manifold valves, burner tub…

Main causes: clogged burner tubes, cracked insulators on igniter electrodes, wiring failures, bad ignition module, manif…

Main causes: nearly empty fuel tank, faulty pressure regulator, burner tube clogs, bad burner tube alignment to gas valv…

Main causes: damaged or dirty flame tamers, corroded firebox, accumulated grease and debris in the grease pan…

Repair guides for gas grills

These step-by-step repair guides will help you safely fix what’s broken on your gas grill.

How to replace a gas grill wheel

How to replace a gas grill wheel

Replace a broken or damaged wheel in less than 15 minutes.…

Repair difficulty
Time required
 15 minutes or less
How to replace a gas grill igniter electrode

How to replace a gas grill igniter electrode

Replace the igniter electrode on your gas grill if it won’t light the burner.…

Repair difficulty
Time required
 15 minutes or less
How to replace a gas grill ignition module

How to replace a gas grill ignition module

Follow these steps to replace the ignition module if it doesn't produce a spark. …

Repair difficulty
Time required
 15 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 gas grill.

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.…

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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.…

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Top questions about Sears and Sears PartsDirect

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