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Horizon
Treadmill

Model # T54 Official Horizon treadmill

Here are the diagrams and repair parts for Official Horizon T54 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 125 parts  |
Power Board SZTM115MCB
#M03

Horizon treadmill diagram

Power board

Part #SZTM115MCB

Replaced by #032669-IF

?
Manufacturer substitution
This part replaces SZTM115MCB. Substitute parts can look different from the original.
This item is not returnable
$220.61 | 
5% OFF Phone Price : $232.61
In Stock
Nut MZE0204005
Nut

Part #MZE0204005

Replaced by #004926-00

?
Manufacturer substitution
This part replaces MZE0204005. Substitute parts can look different from the original.
This item is not returnable
$2.16
In Stock
Elastomer MB0502017D
#B58

Horizon treadmill diagram

Elastomer

Part #MB0502017D

Replaced by #000768-D

?
Manufacturer substitution
This part replaces MB0502017D. Substitute parts can look different from the original.
$13.60
In Stock
Elastomer MB0502016D
#B57

Horizon treadmill diagram

Elastomer

Part #MB0502016D

Replaced by #000767-D

?
Manufacturer substitution
This part replaces MB0502016D. Substitute parts can look different from the original.
$17.69 | 
10% OFF Phone Price : $19.69
In Stock
Reed Switch MC0403014A
#N13

Horizon treadmill diagram

Reed switch

Part #MC0403014A

Replaced by #001963-A

?
Manufacturer substitution
This part replaces MC0403014A. Substitute parts can look different from the original.
This item is not returnable
$3.89
In Stock
Screw ME0107049A
#N59

Horizon treadmill diagram

Screw

Part #ME0107049A

Replaced by #004635-A

?
Manufacturer substitution
This part replaces ME0107049A. Substitute parts can look different from the original.
This item is not returnable
$2.16
In Stock
Fix Plate MJ1040005C
#B52

Horizon treadmill diagram

Fix plate

Part #MJ1040005C

Replaced by #007490-C

?
Manufacturer substitution
This part replaces MJ1040005C. Substitute parts can look different from the original.
This item is not returnable
$2.16
In Stock
Decal MG0209008A
#V03

Horizon treadmill diagram

Decal

Part #MG0209008A

Replaced by #006089-A

?
Manufacturer substitution
This part replaces MG0209008A. Substitute parts can look different from the original.
This item is not returnable
$2.26
In Stock
Breaker MC0702011
#P04

Horizon treadmill diagram

Breaker

Part #MC0702011

Replaced by #003346-00

?
Manufacturer substitution
This part replaces MC0702011. Substitute parts can look different from the original.
$14.80
In Stock
Roller Set SM0908016A
#AR2

Horizon treadmill diagram

Roller set

Part #SM0908016A

Replaced by #014683-B

?
Manufacturer substitution
This part replaces SM0908016A. Substitute parts can look different from the original.
$159.39 | 
7% OFF Phone Price : $171.39
In Stock

Symptoms for treadmills

Choose a symptom to see related treadmill repairs.

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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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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 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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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…

Read more
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'…

Read more
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…

Read more
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.

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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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