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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Browse Parts for
J800 Fitness & Exercise
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

Screw 906709
Screw

Part #906709

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

Clip 903802

#35

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Clip

Part #903802

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

Cable Assembly 904709

#44

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Cable assembly

Part #904709

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

Cable Assembly 904708

#71

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Cable assembly

Part #904708

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

Bearng W/bkt 900303

#28

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Bearng w/bkt

Part #900303

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

Logo 905702

#40

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Logo

Part #905702

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

Manual Guide J800

#NI

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Manual guide

Part #J800

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

End Guard 903000

#9

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End guard

Part #903000

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

Symptoms for treadmills

Choose a symptom to see related treadmill repairs.

Main causes: damaged walking belt, improper belt tension, lack of belt lubricant, bad drive motor…

Main causes: damaged walking belt, improper belt tension, bad roller bearing…

Main causes: rear roller out of alignment, damaged walking belt, bad roller…

Main causes: missing safety key, bad control console, wiring failure, faulty motor control board, bad drive motor…

Main causes: faulty sensors, wiring failure, bad control console…

Main causes: bad control console, wiring failure, bad motor control board…

Main causes: no power, bad power cord, tripped or faulty overload switch, bad power switch, wiring failure, bad motor co…

Repair guides for treadmills

These step-by-step repair guides will help you safely fix what’s broken on your treadmill.

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…

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'…

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…

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.

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.…