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

Bolt 906801

#92

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Bolt

Part #906801

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

Roller Assembly 901922

#23

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Roller assembly

Part #901922

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

Sprocket 902100

#48

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Sprocket

Part #902100

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

Screw 906712

#33

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Screw

Part #906712

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

Weld Ment 900007

#62

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Weld ment

Part #900007

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

J-clip 906904

#114

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J-clip

Part #906904

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

Symptoms for treadmills

Choose a symptom to see related treadmill repairs.

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

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

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

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 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…

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'…

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.

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.…