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Lifestyler
Treadmill

Model # 374288500 Official Lifestyler treadmill

Here are the diagrams and repair parts for Official Lifestyler 374288500 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 77 parts  |
Hndrl Grip 04035800
#45B

Motor and walking belt assembly diagram

Hndrl grip

Part #04035800

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

Owner's Manual 60085200

#NI

All parts diagram

Owner's manual

Part #60085200

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

On/off Switch 37030800
#7H

Control panel diagram

On/off switch

Part #37030800

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

Long Key 29353400
#37C

Motor and walking belt assembly diagram

Long key

Part #29353400

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

Elec Monitor 37028800
#2

Control panel diagram

Elec monitor

Part #37028800

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

Wheel 09076600
#43B

Motor and walking belt assembly diagram

Wheel

Part #09076600

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

Assy,oc4 Con 39312000
#7

Control panel diagram

Assy,oc4 con

Part #39312000

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

Bolt 22011200
#21

Motor and walking belt assembly diagram

Bolt

Part #22011200

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

Cap Foot 02007700
#45D

Motor and walking belt assembly diagram

Cap foot

Part #02007700

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

Ear Clip 37023700
#3

Control panel diagram

Ear clip

Part #37023700

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'…

Read more
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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