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ICP
Furnace

Model # GNM125N20A3 Official ICP gas furnace

Here are the diagrams and repair parts for Official ICP GNM125N20A3 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 88 parts  |
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
Cont Fan Tmr 1009838
#7

Replacement parts diagram

Cont fan tmr

Part #1009838

Replaced by #1170063

?
Manufacturer substitution
This part replaces 1009838. Substitute parts can look different from the original.
$220.46 | 
5% OFF Phone Price : $232.46
In Stock
Furnace Burner 1008726
#26

Replacement parts diagram

Furnace burner

Part #1008726

$142.32
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
$15.14
In Stock
Furnace Inducer Vent Motor Assembly 1011412
#11

Replacement parts diagram

Furnace inducer vent motor assembly

Part #1011412

$693.71 | 
$12.00 OFF Phone Price : $705.71
In Stock
Gasket Box 1010510
#QQ

Replacement parts diagram

Gasket box

Part #1010510

$23.58
In Stock
Gskt Htx Bnr 2480907
#NN

Replacement parts diagram

Gskt htx bnr

Part #2480907

This item is not returnable
$7.46
In Stock
Board Insul 1008684
#V

Replacement parts diagram

Board insul

Part #1008684

$107.20
In Stock
Gskt Viewpor 1093666
#DD

Replacement parts diagram

Gskt viewpor

Part #1093666

This item is not returnable
$6.20
In Stock
Prssr Tap 1005606
#17

Replacement parts diagram

Prssr tap

Part #1005606

This item is not returnable
$3.46
In Stock

Symptoms for treadmills

Choose a symptom to see related treadmill repairs.

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Why does my treadmill's walking belt slow down?

Main causes: damaged walking belt, improper belt tension, lack of belt lubricant, bad drive motor…

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Why is my treadmill's walking belt slipping?

Main causes: damaged walking belt, improper belt tension, bad roller bearing…

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Why is my treadmill's walking belt off center?

Main causes: rear roller out of alignment, damaged walking belt, bad roller…

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Why won't my treadmill start even though the console display works?

Main causes: missing safety key, bad control console, wiring failure, faulty motor control board, bad drive motor…

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Why is my treadmill's heart rate sensor not accurate?

Main causes: faulty sensors, wiring failure, bad control console…

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Why does my treadmill have no display?

Main causes: bad control console, wiring failure, bad motor control board…

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Why won't my treadmill power up?

Main causes: no power, bad power cord, tripped or faulty overload switch, bad power switch, wiring failure, bad motor co…

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Repair guides for treadmills

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

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How to replace a treadmill motor controller

How to replace a treadmill motor controller

Your treadmill motor won't run with a defective motor controller. Replace the motor controller if it doesn't operate the…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a treadmill drive motor

How to replace a treadmill drive motor

A defective drive motor won't run when activated by the motor controller. Replace the treadmill drive motor if it doesn'…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a treadmill walking board

How to replace a treadmill walking board

A worn-out walking board creates friction with the walking belt and causes the belt to slow down during use. Replace the…

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Repair difficulty
Time required
 30 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 treadmill.

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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

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

Top questions about Sears and Sears PartsDirect

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

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