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Treadmill

Model # CST5HR Official Horizon treadmill

Here are the diagrams and repair parts for Official Horizon CST5HR treadmill, as well as links to manuals and error code tables, if available.

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Browse Parts forCST5HR Fitness & Exercise

  • Motor Set SCA302017
    #M02

    Treadmill diagram

    Motor set

    Part #SCA302017

    Replaced by #012804-00

    ?
    Manufacturer substitution
    This part replaces SCA302017. Substitute parts can look different from the original.
    In Stock
  • Screw ME0106026B
    #M10

    Treadmill diagram

    Screw

    Part #ME0106026B

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

  • Screw MZE0106018
    #M14

    Treadmill diagram

    Screw

    Part #MZE0106018

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

  • Grip Pulse MC0712021B
    #N26

    Treadmill diagram

    Grip pulse

    Part #MC0712021B

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

  • Decal MG0256122A
    #V23

    Treadmill diagram

    Decal

    Part #MG0256122A

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

  • End Cap,l MB0665019DA
    #Q07

    Treadmill diagram

    End cap,l

    Part #MB0665019DA

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

  • Nut MZE0201003
    #M44

    Treadmill diagram

    Nut

    Part #MZE0201003

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

  • Washer MZE0502025
    #M09

    Treadmill diagram

    Washer

    Part #MZE0502025

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

  • Spd Sensor SSED080434BA
    #P14

    Treadmill diagram

    Spd sensor

    Part #SSED080434BA

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

  • Cable MC0503001B
    #P08

    Treadmill diagram

    Cable

    Part #MC0503001B

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

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

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

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 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…

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'…

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.

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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