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Lifestyler
Treadmill

Model # 374150160 Official Lifestyler treadmill

Here are the diagrams and repair parts for Official Lifestyler 374150160 treadmill, as well as links to manuals and error code tables, if available.

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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 43 parts  |
Screw Mach 21031600
#24

Unit parts diagram

Screw mach

Part #21031600

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

Sm Knob 39462000
#10

Unit parts diagram

Sm knob

Part #39462000

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

Owner's Manual 60137500

#NI

All parts diagram

Owner's manual

Part #60137500

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

Screw 5mm 21028800
#25

Unit parts diagram

Screw 5mm

Part #21028800

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

Roller 39461300
#22

Unit parts diagram

Roller

Part #39461300

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

Mch Screw 21031500
#21

Unit parts diagram

Mch screw

Part #21031500

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

Side Rail 09216700
#11

Unit parts diagram

Side rail

Part #09216700

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

Bolt 22039700
#32

Unit parts diagram

Bolt

Part #22039700

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

Handrail 38428516
#5

Unit parts diagram

Handrail

Part #38428516

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

Foot/cap 02071500
#19

Unit parts diagram

Foot/cap

Part #02071500

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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