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Weslo
Treadmill

Model # WL401520 Official Weslo 10 pi treadmill

Here are the diagrams and repair parts for Official Weslo WL401520 10 pi 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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Showing 10 of 104 parts  |
Walking Belt Assembly 123370
#53

Unit parts diagram

Walking belt assembly

Part #123370

Replaced by #134483

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Manufacturer substitution
This part replaces 123370. Substitute parts can look different from the original.
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$62.39 | 
9% OFF Phone Price : $68.39
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Image Treadmill Safety Key Assembly 106337
#6

Unit parts diagram

Image treadmill safety key assembly

Part #106337

This item is not returnable
$6.59 | 
13% OFF Phone Price : $7.59
In Stock
V-belt 106939
#83

Unit parts diagram

V-belt

Part #106939

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

Choke,5.5mh 031238
#22

Unit parts diagram

Choke,5.5mh

Part #031238

Replaced by #130993

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Manufacturer substitution
This part replaces 031238. Substitute parts can look different from the original.
$34.19 | 
15% OFF Phone Price : $40.19
In Stock
Nut,hex Nyl 012082
#17

Unit parts diagram

Nut,hex nyl

Part #012082

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

Exercise Equipment Nut 012179
#45

Unit parts diagram

Exercise equipment nut

Part #012179

This item is not returnable
$2.16
In Stock
Exercise Equipment Screw 013162
#67

Unit parts diagram

Exercise equipment screw

Part #013162

This item is not returnable
$2.16
In Stock
Exercise Equipment Hex Nut 012108
#29

Unit parts diagram

Exercise equipment hex nut

Part #012108

This item is not returnable
$2.16
In Stock
Black & Decker Treadmill Power Cord (replaces 031033, 031143, 031147, 247991) 031229
#36

Unit parts diagram

Black & decker treadmill power cord (replaces 031033, 031143, 031147, 247991)

Part #031229

$11.39 | 
15% OFF Phone Price : $13.39
In Stock
Exercise Equipment Bolt 104581
#7

Unit parts diagram

Exercise equipment bolt

Part #104581

This item is not returnable
$2.16
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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