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NordicTrack
Treadmill

Model # NTL24821 Official NordicTrack e 4400 treadmill

Here are the diagrams and repair parts for Official NordicTrack NTL24821 e 4400 treadmill, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 163 parts  |
Treadmill Walking Belt Alignment Tool (replaces 161927) 128457
Treadmill walking belt alignment tool (replaces 161927)

Part #128457

This item is not returnable
$2.49
| 
29% OFF Phone Price : $3.49
In Stock
Treadmill Safety Key Assembly 160695
Treadmill safety key assembly

Part #160695

This item is not returnable
$5.99
In Stock
Magnet,rnd,m 100498

#7

All parts diagram

Magnet,rnd,m

Part #100498

Replaced by #113842

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Manufacturer substitution
This part replaces 100498. Substitute parts can look different from the original.
This item is not returnable
$2.16
Back Order
Exercise Equipment Nut 012179

#11

All parts diagram

Exercise equipment nut

Part #012179

This item is not returnable
$2.16
In Stock
Exercise Equipment Screw 013576

#45

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Exercise equipment screw

Part #013576

This item is not returnable
$2.16
In Stock
Lifestyler Exercise Equipment Screw 146427

#100B

All parts diagram

Lifestyler exercise equipment screw

Part #146427

This item is not returnable
$2.16
In Stock
Weslo Exercise Equipment Screw 130659

#15

All parts diagram

Weslo exercise equipment screw

Part #130659

This item is not returnable
$2.16
In Stock
Exerciser Reed Switch And Sensor Wire 185207

#10

All parts diagram

Exerciser reed switch and sensor wire

Part #185207

$9.99
In Stock
Front Roller/pulley 195283

#8

All parts diagram

Front roller/pulley

Part #195283

Replaced by #204502

?
Manufacturer substitution
This part replaces 195283. Substitute parts can look different from the original.
$72.99
In Stock
Weslo Treadmill Screw 162866

#54

All parts diagram

Weslo treadmill screw

Part #162866

This item is not returnable
$2.16
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...

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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'...

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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 fitness & exercise

Use the advice and tips in these articles and videos to get the most out of your treadmill.

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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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