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Lifestyler
Treadmill

Model # 831297033 Official Lifestyler 8-mph treadmill

Here are the diagrams and repair parts for Official Lifestyler 831297033 8-mph treadmill, as well as links to manuals and error code tables, if available.

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Owner’s manual

Model diagram and schematic

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Showing 10 of 99 parts  |
Walking Belt Assembly 123370
#53

Unit parts diagram

Walking belt assembly

Part #123370

Replaced by #134483

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Manufacturer substitution
This part replaces 123370. Substitute parts can look different from the original.
BEST SELLER
$62.39
| 
9% OFF Phone Price : $68.39
In Stock
Treadmill Circuit Breaker, 15-amp (replaces 031103, 127202, 173322) 109382
#38

Unit 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
Image Treadmill Safety Key Assembly 106337
#6

Unit parts diagram

Image treadmill safety key assembly

Part #106337

This item is not returnable
$6.59
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13% OFF Phone Price : $7.59
In Stock
Black & Decker Treadmill Line Filter 185582
#33

Unit parts diagram

Black & decker treadmill line filter

Part #185582

$29.69
| 
17% OFF Phone Price : $35.69
In Stock
Nut,hex Nyl 012082
#19

Unit parts diagram

Nut,hex nyl

Part #012082

The manufacturer no longer makes this part, and there's no substitute part

Exercise Equipment Nut 012179
#44

Unit parts diagram

Exercise equipment nut

Part #012179

This item is not returnable
$2.16
In Stock
Nordictrack Exercise Equipment Push Nut, 1-in 108778
#34

Unit parts diagram

Nordictrack exercise equipment push nut, 1-in

Part #108778

This item is not returnable
$2.16
In Stock
Screw 102959
#59

Unit parts diagram

Screw

Part #102959

This item is not returnable
$2.16
In Stock
Weider Exercise Equipment Optic Sensor 102955
#60

Unit parts 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 108080
#82

Unit parts diagram

Exercise equipment screw

Part #108080

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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