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Lifestyler
Treadmill

Model # J800 Official Lifestyler treadmill

Here are the diagrams and repair parts for Official Lifestyler J800 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 104 parts  |
Pcb Assembly 904300

#105

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Pcb assembly

Part #904300

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

Pcb Assembly 904410

#57A

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Pcb assembly

Part #904410

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

Ten Turn Dot 905000

#89

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Ten turn dot

Part #905000

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

Weldment 900003

#14

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Weldment

Part #900003

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

Targa Tube 901090

#73

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Targa tube

Part #901090

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

Bearing 900302

#25

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Bearing

Part #900302

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

Lift Wheel 907201

#101

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Lift wheel

Part #907201

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

Lift Clamp 905201

#116

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Lift clamp

Part #905201

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

Clip 903801

#38

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Clip

Part #903801

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

End Cap R 902901

#13

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End cap r

Part #902901

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

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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