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Weslo
Treadmill

Model # WLTL421040 Official Weslo cardiopacer treadmill

Here are the diagrams and repair parts for Official Weslo WLTL421040 cardiopacer treadmill, as well as links to manuals and error code tables, if available.

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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 96 parts  |
Black & Decker Treadmill Line Filter 185582
#4

Walking belt/rails/console/motor diagram

Black & decker treadmill line filter

Part #185582

$29.69 | 
17% OFF Phone Price : $35.69
In Stock
Black & Decker Treadmill Washer 014063
#66

Walking belt/rails/console/motor diagram

Black & decker treadmill washer

Part #014063

This item is not returnable
$2.49 | 
29% OFF Phone Price : $3.49
In Stock
Magnet,rnd,m 100498
#49

Walking belt/rails/console/motor diagram

Magnet,rnd,m

Part #100498

Replaced by #113842

?
Manufacturer substitution
This part replaces 100498. Substitute parts can look different from the original.
This item is not returnable
$2.16
Back Order
Black & Decker Treadmill Transport Wheel 165009
Black & decker treadmill transport wheel

Part #165009

This item is not returnable
$2.99
In Stock
Weider Belt Guide 198640
#27

Walking belt/rails/console/motor diagram

Weider belt guide

Part #198640

This item is not returnable
$2.16
In Stock
Exercise Equipment Nut 012179
#63

Walking belt/rails/console/motor diagram

Exercise equipment nut

Part #012179

This item is not returnable
$2.16
In Stock
Exerciser Reed Switch And Sensor Wire 185207
#46

Walking belt/rails/console/motor diagram

Exerciser reed switch and sensor wire

Part #185207

$9.99
In Stock
Exercise Equipment Screw 013576

#NI01

All parts diagram

Exercise equipment screw

Part #013576

This item is not returnable
$2.16
In Stock
Treadmill Star Washer 163045
Treadmill star washer

Part #163045

This item is not returnable
$2.16
In Stock
Hardware Kit Assembly 203582

#NI21

All parts diagram

Hardware kit assembly

Part #203582

This item is not returnable
$6.49
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…

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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'…

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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…

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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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