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Nautilus
Treadmill

Model # 100496 Official Nautilus treadmill

Here are the diagrams and repair parts for Official Nautilus 100496 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 62 parts  |
Mtr Cover 8010052
#NI

Main asy diagram

Mtr cover

Part #8010052

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

Weldment 8009222
#NI

Main asy diagram

Weldment

Part #8009222

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

Tube-shock 8009225
#NI

Main asy diagram

Tube-shock

Part #8009225

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

Weldment-t 8009065
#5A

Main asy diagram

Weldment-t

Part #8009065

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

Tray-cross 8010343
#11

Main asy diagram

Tray-cross

Part #8010343

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

Fr Roller 8009123
#NI

Main asy diagram

Fr roller

Part #8009123

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

Shroud 8009263
#5F

Main asy diagram

Shroud

Part #8009263

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

Weldment-t 8010053
#NI

Main asy diagram

Weldment-t

Part #8010053

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

Cover-junc 8009293
#NI

Main asy diagram

Cover-junc

Part #8009293

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

Rear Rolle 8009212
#NI

Main asy diagram

Rear rolle

Part #8009212

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 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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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 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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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 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…

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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'…

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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.

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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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