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Elliptical Machine

Model # 831238903 Official Proform elliptical

Here are the diagrams and repair parts for Official Proform 831238903 elliptical, as well as links to manuals and error code tables, if available.

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  • In the search box below, enter all or part of the part number or the part’s name.

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

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 134 parts  |
Deflecto Exercise Cycle Drive Belt 176559

#64

All parts diagram

Deflecto exercise cycle drive belt

Part #176559

$24.89 | 
19% OFF Phone Price : $30.89
In Stock
Black & Decker Exercise Equipment Lubricating Grease 104838

#NI05

All parts diagram

Black & decker exercise equipment lubricating grease

Part #104838

This item is not returnable
$3.89 | 
20% OFF Phone Price : $4.89
In Stock
Toyostove Exercise Equipment Magnet 113842

#117

All parts diagram

Toyostove exercise equipment magnet

Part #113842

This item is not returnable
$2.16
Back Order
Elliptical Resistance Motor 241949

#44

All parts diagram

Elliptical resistance motor

Part #241949

$52.19 | 
10% OFF Phone Price : $58.19
In Stock
Reebok Elliptical Crank Bearing (replaces 248395) 139703

#51

All parts diagram

Reebok elliptical crank bearing (replaces 248395)

Part #139703

This item is not returnable
$13.99 | 
13% OFF Phone Price : $15.99
Back Order
Idler Bushing (2) 372250

#56

All parts diagram

Idler bushing (2)

Part #372250

This item is not returnable
$3.49
In Stock
Exercise Cycle Optional Power Supply 337717

#NI13

All parts diagram

Exercise cycle optional power supply

Part #337717

$49.48 | 
11% OFF Phone Price : $55.48
In Stock
Pivot Spacer (2) 371082

#79

All parts diagram

Pivot spacer (2)

Part #371082

$8.99
In Stock
C-magnet 372284

#43

All parts diagram

C-magnet

Part #372284

$38.99
In Stock
Toyostove Wire Tie, 15-1/2-in 116566

#NI02

All parts diagram

Toyostove wire tie, 15-1/2-in

Part #116566

This item is not returnable
$2.16
In Stock

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Symptoms for elliptical machines

Choose a symptom to see related elliptical repairs.

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Why does my elliptical make squeaking noises?

Main cause: lack of lubrication on pivot points…

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Why does my elliptical display the wrong speed?

Main causes: faulty reed switch, reed switch needs adjustment, wiring failure, bad control console…

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Why can't my elliptical detect my heart rate?

Main causes: dirty heart rate sensors, wiring failure, bad control console…

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Why won't my elliptical's console turn on?

Main causes: dead batteries, power supply failure, bad wiring connections, faulty control console…

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How do I tighten elliptical handle bars?

Main causes: loose fastening bolts, damaged handle bars…

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Why is my elliptical's console display dim?

Main causes: weak batteries, loose wires, faulty control console…

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Why does my elliptical rock?

Main causes: leveling feet need to be adjusted, loose frame bolts, unstable flooring…

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Why won't my elliptical's pedal resistance change?

Main causes: bad resistance motor, faulty control console, wiring failure…

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Repair guides for elliptical machines

These step-by-step repair guides will help you safely fix what’s broken on your elliptical.

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How to replace an elliptical resistance motor

How to replace an elliptical resistance motor

If the resistance motor is not changing the resistance on your elliptical, replace it using these steps.…

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Repair difficulty
Time required
 15 minutes or less
How to adjust an elliptical reed switch

How to adjust an elliptical reed switch

If the console doesn't display the correct speed on your elliptical, adjust the reed switch using these steps.…

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Repair difficulty
Time required
 15 minutes or less
How to replace an elliptical console

How to replace an elliptical console

If the console on your elliptical doesn't work, replace it by following these 3 easy steps.…

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Repair difficulty
Time required
 15 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 elliptical.

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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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