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Horizon
Treadmill

Model # RT1 Official Horizon treadmill

Here are the diagrams and repair parts for Official Horizon RT1 treadmill, as well as links to manuals and error code tables, if available.

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Installation guide

Model diagram and schematic

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ALL PARTS
Showing 10 of 105 parts  |
Breaker MC0702011
#P04

Cycle diagram

Breaker

Part #MC0702011

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

Rail Lock MB0643001
#L10

Cycle diagram

Rail lock

Part #MB0643001

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

Screw MZE0104203
#R04

Cycle diagram

Screw

Part #MZE0104203

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

Screw MZE0106018
#M14

Cycle diagram

Screw

Part #MZE0106018

Replaced by #004590-Z

?
Manufacturer substitution
This part replaces MZE0106018. Substitute parts can look different from the original.
This item is not returnable
$2.16
In Stock
Fix Plate MJ1040005C
#B52

Cycle 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
Kss Clip MB0905016
#P12

Cycle diagram

Kss clip

Part #MB0905016

Replaced by #001675-00

?
Manufacturer substitution
This part replaces MB0905016. Substitute parts can look different from the original.
This item is not returnable
$2.16
In Stock
Motor Set SZTM61MTR
#M01

Cycle diagram

Motor set

Part #SZTM61MTR

Replaced by #016507-Z

?
Manufacturer substitution
This part replaces SZTM61MTR. Substitute parts can look different from the original.
$261.04 | 
$12.00 OFF Phone Price : $273.04
In Stock
Belt MD0602023
#R03

Cycle diagram

Belt

Part #MD0602023

Replaced by #1000109577

?
Manufacturer substitution
This part replaces MD0602023. Substitute parts can look different from the original.
$57.97
In Stock
Cushion B MZE0511003A
#B57

Cycle diagram

Cushion b

Part #MZE0511003A

Replaced by #005249-A

?
Manufacturer substitution
This part replaces MZE0511003A. Substitute parts can look different from the original.
$11.25
In Stock
Switch MC0701002
#P02

Cycle diagram

Switch

Part #MC0701002

Replaced by #003326-00

?
Manufacturer substitution
This part replaces MC0701002. Substitute parts can look different from the original.
$27.79 | 
18% OFF Phone Price : $33.79
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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