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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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ALL PARTS
Showing 10 of 62 parts  |
Deck 8009107
#5J

Main asy diagram

Deck

Part #8009107

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

Treadmill Safety Key 8006259
#14

Main asy diagram

Treadmill safety key

Part #8006259

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

Upright Le 8009079
#9

Main asy diagram

Upright le

Part #8009079

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

Shroud-bas 8009252
#7

Main asy diagram

Shroud-bas

Part #8009252

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

Svc Kit,mt 8006012
#NI

Main asy diagram

Svc kit,mt

Part #8006012

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

Upper Cable 8011991
#NI

Main asy diagram

Upper cable

Part #8011991

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

Adjustable Foot 8005139
#NI

Main asy diagram

Adjustable foot

Part #8005139

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

Power Box Trim Motor Cover 8004478
#NI

Main asy diagram

Power box trim motor cover

Part #8004478

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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