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Treadmill

Model # 831247551 Official Proform treadmill

Here are the diagrams and repair parts for Official Proform 831247551 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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Showing 10 of 132 parts  |
Treadmill Walking Belt Lubricant (replaces 134591) 219168

#NI20

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Treadmill walking belt lubricant (replaces 134591)

Part #219168

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This item is not returnable
$3.99
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Treadmill Walking Belt Lubricant, 3-pack (replaces 202557, 219897) 219170

#NI21

All parts diagram

Treadmill walking belt lubricant, 3-pack (replaces 202557, 219897)

Part #219170

$23.69 | 
20% OFF Phone Price : $29.69
In Stock
Toyostove Exercise Equipment Magnet 113842

#50

All parts diagram

Toyostove exercise equipment magnet

Part #113842

This item is not returnable
$2.16
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Treadmill Drive Belt 254303

#62

All parts diagram

Treadmill drive belt

Part #254303

This item is not returnable
$17.49 | 
10% OFF Phone Price : $19.49
In Stock
Healthrider Front Wheel 139090

#84

All parts diagram

Healthrider front wheel

Part #139090

This item is not returnable
$2.99
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Lifestyler Exercise Equipment Screw 013607

#15

All parts diagram

Lifestyler exercise equipment screw

Part #013607

This item is not returnable
$2.49 | 
29% OFF Phone Price : $3.49
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Toyostove Key Plate 203945

#106

All parts diagram

Toyostove key plate

Part #203945

This item is not returnable
$2.16
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Treadmill Upright Wire Harness 253669

#38

All parts diagram

Treadmill upright wire harness

Part #253669

$49.99
In Stock
Treadmill Star Washer 163045

#9

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Treadmill star washer

Part #163045

This item is not returnable
$2.16
In Stock
Frame Spacer 251133

#48

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Frame spacer

Part #251133

This item is not returnable
$2.16
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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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