Can’t find your part? Contact us:

+1-309-603-4777

Fitness & Exercise

Model # 21-3688A Official DP exercise equipment

Here are the diagrams and repair parts for Official DP 21-3688A exercise equipment, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

Click a diagram to see the parts shown on that diagram.
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”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

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

Model diagram and schematic

SEARCH WITHIN THIS MODEL

ALL PARTS

Showing 10 of 80 parts |

Lock Nut 25018700

#16D

All parts diagram

Lock nut

Part #25018700

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

Lock Nut 25001500

#48

All parts diagram

Lock nut

Part #25001500

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

Lock Washer 26012900

#27O

All parts diagram

Lock washer

Part #26012900

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

Washer 26000400

#52

All parts diagram

Washer

Part #26000400

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

Controller 37043200

#23

All parts diagram

Controller

Part #37043200

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

"j" Bolt 23020700

#38

All parts diagram

"j" bolt

Part #23020700

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

Rubber Pad 04030500

#35

All parts diagram

Rubber pad

Part #04030500

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

Motor 37041200

#24B

All parts diagram

Motor

Part #37041200

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

Antislip Pad 04040500

#36

All parts diagram

Antislip pad

Part #04040500

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

Bolt Hex 22026000

#16C

All parts diagram

Bolt hex

Part #22026000

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

Symptoms for elliptical machines

Choose a symptom to see related elliptical repairs.

Why does my elliptical rock?

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

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

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

How do I tighten elliptical handle bars?

Main causes: loose fastening bolts, damaged handle bars…

Why is my elliptical's console display dim?

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

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

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

Why does my elliptical display the wrong speed?

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

Why does my elliptical make squeaking noises?

Main cause: lack of lubrication on pivot points…

Why can't my elliptical detect my heart rate?

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

Repair guides for elliptical machines

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

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.…

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.…

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.…

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.

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.…

Stay Connected