Treadmill

Model # 29653 Official Lifestyler 3400 programmable treadmill

Here are the diagrams and repair parts for Official Lifestyler 29653 3400 programmable treadmill, as well as links to manuals and error code tables, if available.

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Browse Parts for
29653 Fitness & Exercise
Switch HH4514T
#24

Console and upright assembly diagram

Switch

Part #HH4514T

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

Serv Manual1 200025

#NI

All parts diagram

Serv manual1

Part #200025

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

Motor Cover HH8131T
Motor cover

Part #HH8131T

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

Foot Pad KK6010T
#50

Walking belt assembly diagram

Foot pad

Part #KK6010T

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

Cord-magnet QQ1501T
#29

Console and upright assembly diagram

Cord-magnet

Part #QQ1501T

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

Handrail 340133T
#27

Console and upright assembly diagram

Handrail

Part #340133T

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

Screw HH1007T
#42

Walking belt assembly diagram

Screw

Part #HH1007T

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

Hex Wrench HH8007T

#NI

All parts diagram

Hex wrench

Part #HH8007T

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

Screw HH8070T
#36

Console and upright assembly diagram

Screw

Part #HH8070T

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

Bushing MM1500T
#44

Walking belt assembly diagram

Bushing

Part #MM1500T

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

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

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

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 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
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…

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.

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.…