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Lifestyler
Treadmill

Model # 831297031 Official Lifestyler 8-mph treadmill

Here are the diagrams and repair parts for Official Lifestyler 831297031 8-mph treadmill, as well as links to manuals and error code tables, if available.

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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 111 parts  |
Walking Belt Assembly 123370
#53

Lifestyler 8.0mph treadmill diagram

Walking belt assembly

Part #123370

Replaced by #134483

?
Manufacturer substitution
This part replaces 123370. Substitute parts can look different from the original.
$62.39 | 
9% OFF Phone Price : $68.39
In Stock
Black & Decker Treadmill Power Cord (replaces 031033, 031143, 031147, 247991) 031229
#35

Lifestyler 8.0mph treadmill diagram

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

Part #031229

$11.39 | 
15% OFF Phone Price : $13.39
In Stock
Cb,15 Amp,sl 031103
#38

Lifestyler 8.0mph treadmill diagram

Cb,15 amp,sl

Part #031103

Replaced by #109382

?
Manufacturer substitution
This part replaces 031103. Substitute parts can look different from the original.
This item is not returnable
$9.39 | 
10% OFF Phone Price : $10.39
In Stock
Black & Decker Treadmill Line Filter 185582
#33

Lifestyler 8.0mph treadmill diagram

Black & decker treadmill line filter

Part #185582

$29.69 | 
17% OFF Phone Price : $35.69
In Stock
Weider Exercise Equipment Optic Sensor 102955
#60

Lifestyler 8.0mph treadmill diagram

Weider exercise equipment optic sensor

Part #102955

This item is not returnable
$9.29 | 
10% OFF Phone Price : $10.29
In Stock
Exercise Equipment Screw 013162
#64

Lifestyler 8.0mph treadmill diagram

Exercise equipment screw

Part #013162

This item is not returnable
$2.16
In Stock
Exercise Equipment Flat Washer 014127
#49

Lifestyler 8.0mph treadmill diagram

Exercise equipment flat washer

Part #014127

This item is not returnable
$2.16
In Stock
Toyostove Ground Wire, 8-in (green) 102634

#NI

All parts diagram

Toyostove ground wire, 8-in (green)

Part #102634

This item is not returnable
$2.16
In Stock
Black & Decker Exercise Equipment Screw 105444
#71

Lifestyler 8.0mph treadmill diagram

Black & decker exercise equipment screw

Part #105444

This item is not returnable
$2.16
In Stock
Image Treadmill Safety Key Assembly 106337
#6

Lifestyler 8.0mph treadmill diagram

Image treadmill safety key assembly

Part #106337

This item is not returnable
$6.59 | 
13% OFF Phone Price : $7.59
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…

Read more
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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