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Treadmill

Model # 831294031 Official Proform treadmill

Here are the diagrams and repair parts for Official Proform 831294031 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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Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 138 parts  |
Treadmill Safety Key (replaces 125589, 153017) 119038
Treadmill safety key (replaces 125589, 153017)

Part #119038

BEST SELLER
This item is not returnable
$3.14 | 
24% OFF Phone Price : $4.14
Back Order
Kit,wlk-blt, 202557

#NI02

All parts diagram

Kit,wlk-blt,

Part #202557

Replaced by #219170

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Manufacturer substitution
This part replaces 202557. Substitute parts can look different from the original.
$23.69 | 
20% OFF Phone Price : $29.69
Back Order
Black & Decker Exercise Equipment Screw 105444
#92

Treadmill diagram

Black & decker exercise equipment screw

Part #105444

This item is not returnable
$2.16
Back Order
Toyostove Exercise Equipment Rubber Pad 157600
Toyostove exercise equipment rubber pad

Part #157600

This item is not returnable
$2.16
In Stock
Treadmill Rear Roller 193043
#100

Treadmill diagram

Treadmill rear roller

Part #193043

$54.59 | 
10% OFF Phone Price : $60.59
In Stock
Black & Decker Treadmill Nut 119425
#13

Treadmill diagram

Black & decker treadmill nut

Part #119425

This item is not returnable
$2.16
In Stock
Black & Decker Power Cord Grommet 173169
#80

Treadmill diagram

Black & decker power cord grommet

Part #173169

This item is not returnable
$2.16
In Stock
Weider Treadmill Pan Fastener 138853
#84

Treadmill diagram

Weider treadmill pan fastener

Part #138853

This item is not returnable
$2.16
In Stock
Black & Decker Exercise Equipment Nut 012149
Black & decker exercise equipment nut

Part #012149

This item is not returnable
$2.16
In Stock
Weider Belt Guide 198640
#82

Treadmill diagram

Weider belt guide

Part #198640

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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