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Treadmill

Model # 831248500 Official Proform 405 fit ble treadmill

Here are the diagrams and repair parts for Official Proform 831248500 405 fit ble 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 117 parts  |
Treadmill Walking Belt Lubricant (replaces 134591) 219168

#NI17

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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

#NI18

All parts diagram

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

Part #219170

$23.69 | 
20% OFF Phone Price : $29.69
In Stock
Treadmill Incline Motor Sensor Kit 286707

#NI09

All parts diagram

Treadmill incline motor sensor kit

Part #286707

This item is not returnable
$15.38 | 
12% OFF Phone Price : $17.38
In Stock
Black & Decker Treadmill Washer 014063

#43

All parts diagram

Black & decker treadmill washer

Part #014063

This item is not returnable
$2.49 | 
29% OFF Phone Price : $3.49
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Treadmill Motor Control Board 339463

#60

All parts diagram

Treadmill motor control board

Part #339463

Replaced by #409603

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Manufacturer substitution
This part replaces 339463. Substitute parts can look different from the original.
$140.26 | 
8% OFF Was : $152.46
In Stock
Weider Belt Guide 198640

#41

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Weider belt guide

Part #198640

This item is not returnable
$2.16
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Toyostove Elliptical Nut 148710

#88

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Toyostove elliptical nut

Part #148710

This item is not returnable
$2.16
In Stock
Upright Grommet 227199
Upright grommet

Part #227199

This item is not returnable
$2.16
In Stock
Weider Exercise Equipment Screw 234285

#14

All parts diagram

Weider exercise equipment screw

Part #234285

This item is not returnable
$2.16
In Stock
Exercise Equipment Screw 013576

#6

All parts diagram

Exercise equipment screw

Part #013576

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…

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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