Treadmill

Model # TSC4 Official Horizon elite treadmill

Here are the diagrams and repair parts for Official Horizon TSC4 elite treadmill, as well as links to manuals and error code tables, if available.

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TSC4 Fitness & Exercise
Breaker MC0702011
#P04

Treadmill assembly diagram

Breaker

Part #MC0702011

Replaced by #003346-00

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Manufacturer substitution
This part replaces MC0702011. Substitute parts can look different from the original.
In Stock
Switch MC0701002
#P02

Treadmill assembly diagram

Switch

Part #MC0701002

Replaced by #003326-00

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Manufacturer substitution
This part replaces MC0701002. Substitute parts can look different from the original.
$27.79
18% OFF Phone Price : $33.79
In Stock
Drive Belt MD0602001
#R03

Treadmill assembly diagram

Drive belt

Part #MD0602001

Replaced by #1000109551

?
Manufacturer substitution
This part replaces MD0602001. Substitute parts can look different from the original.
$55.69
10% OFF Phone Price : $61.69
In Stock
Washer MZE0505033
Washer

Part #MZE0505033

Replaced by #005196-00

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Manufacturer substitution
This part replaces MZE0505033. Substitute parts can look different from the original.
This item is not returnable
In Stock
Rail Lock MB0643001
#Q10

Treadmill assembly diagram

Rail lock

Part #MB0643001

Replaced by #001251-F

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Manufacturer substitution
This part replaces MB0643001. Substitute parts can look different from the original.
This item is not returnable
In Stock
Sleeve MJ3021002A
#C16

Treadmill assembly diagram

Sleeve

Part #MJ3021002A

Replaced by #008622-B

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Manufacturer substitution
This part replaces MJ3021002A. Substitute parts can look different from the original.
This item is not returnable
In Stock
Connector Plate MJ1234001
#N14

Treadmill assembly diagram

Connector plate

Part #MJ1234001

Replaced by #007964-00

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Manufacturer substitution
This part replaces MJ1234001. Substitute parts can look different from the original.
This item is not returnable
In Stock
C-clip MZE0701001
C-clip

Part #MZE0701001

Replaced by #005330-00

?
Manufacturer substitution
This part replaces MZE0701001. Substitute parts can look different from the original.
This item is not returnable
In Stock
Spring MZE1103002
#U11

Treadmill assembly diagram

Spring

Part #MZE1103002

Replaced by #005439-00

?
Manufacturer substitution
This part replaces MZE1103002. Substitute parts can look different from the original.
This item is not returnable
In Stock
Washer MZE0502058
Washer

Part #MZE0502058

Replaced by #005066-00

?
Manufacturer substitution
This part replaces MZE0502058. Substitute parts can look different from the original.
This item is not returnable
In Stock

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.…