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NordicTrack
Treadmill

Model # NTTL25900 Official NordicTrack 6100xl treadmill

Here are the diagrams and repair parts for Official NordicTrack NTTL25900 6100xl 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 197 parts  |
Treadmill Walking Belt Alignment Tool (replaces 161927) 128457

#122

All parts diagram

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 Circuit Breaker, 15-amp (replaces 031103, 127202, 173322) 109382

#55

All parts diagram

Treadmill circuit breaker, 15-amp (replaces 031103, 127202, 173322)

Part #109382

This item is not returnable
$9.39 | 
10% OFF Phone Price : $10.39
In Stock
Black & Decker Treadmill Power Cord (replaces 031033, 031143, 031147, 247991) 031229

#53

All parts diagram

Black & decker treadmill power cord (replaces 031033, 031143, 031147, 247991)

Part #031229

$11.39 | 
15% OFF Phone Price : $13.39
In Stock
Toyostove Exercise Equipment Rubber Pad 157600

#108

All parts diagram

Toyostove exercise equipment rubber pad

Part #157600

This item is not returnable
$2.16
In Stock
Black & Decker Exercise Equipment Screw 154848

#117

All parts diagram

Black & decker exercise equipment screw

Part #154848

This item is not returnable
$2.16
In Stock
Rail,deck,lt 163170

#2

All parts diagram

Rail,deck,lt

Part #163170

$90.99
In Stock
Custom Screw 185445

#16B

All parts diagram

Custom screw

Part #185445

This item is not returnable
$2.16
In Stock
Bmpr,rnd,1.0 160716
Bmpr,rnd,1.0

Part #160716

$11.49
In Stock
Whl,flat,.5x 161393

#106

All parts diagram

Whl,flat,.5x

Part #161393

This item is not returnable
$2.16
In Stock
Exercise Equipment Screw 013244

#16A

All parts diagram

Exercise equipment screw

Part #013244

This item is not returnable
$2.16
In Stock

Symptoms for treadmills

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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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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 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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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 walking belt

How to replace a treadmill walking belt

A worn walking belt will begin to slow down during use. If your treadmill walking belt is worn out, replace it using the…

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Repair difficulty
Time required
 45 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

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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