Furnace

Model # TNK125N20A1 Official ICP gas furnace

Here are the diagrams and repair parts for Official ICP TNK125N20A1 gas furnace, as well as links to manuals and error code tables, if available.

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Browse Parts for
TNK125N20A1 Gas Furnace
Furnace Pilot Igniter And Sensor (replaces B14010-11s, Q3400a1040) 1009524
#23

Replacement parts diagram

Furnace pilot igniter and sensor (replaces b14010-11s, q3400a1040)

Part #1009524

$166.19
7% OFF Phone Price : $178.19
In Stock
Cap Rnrd 1094956
#6

Replacement parts diagram

Cap rnrd

Part #1094956

Replaced by #12908

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Manufacturer substitution
This part replaces 1094956. Substitute parts can look different from the original.
$107.77
10% OFF Phone Price : $119.77
In Stock
Coupling 1002522

#NI

All parts diagram

Coupling

Part #1002522

In Stock
Limit Switch 1000735
#29

Replacement parts diagram

Limit switch

Part #1000735

Replaced by #1013105

?
Manufacturer substitution
This part replaces 1000735. Substitute parts can look different from the original.
This item is not returnable
In Stock
Control 1011882
#7

Replacement parts diagram

Control

Part #1011882

Replaced by #1014459

?
Manufacturer substitution
This part replaces 1011882. Substitute parts can look different from the original.
$320.61
$12.00 OFF Phone Price : $332.61
In Stock
Seal Strip 1009244
#PP

Replacement parts diagram

Seal strip

Part #1009244

In Stock
Gskt Burn Bx 1008761
#LL

Replacement parts diagram

Gskt burn bx

Part #1008761

In Stock
Panel Cutoff 721020008
#M

Replacement parts diagram

Panel cutoff

Part #721020008

In Stock
Bracket Burn 1008722
#FF

Replacement parts diagram

Bracket burn

Part #1008722

In Stock
Viewport Cvr 2480678
#CC

Replacement parts diagram

Viewport cvr

Part #2480678

In Stock

Symptoms for gas grills

Choose a symptom to see related gas grill repairs.

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

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

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

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

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.…

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.…