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Model # NTL12940 Official NordicTrack c2300 treadmill
Here are the diagrams and repair parts for Official NordicTrack NTL12940 c2300 treadmill, as well as links to manuals and error code tables, if available.
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Browse Parts forNTL12940 Fitness & Exercise
#34
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Black & decker treadmill washerPart #014063
This item is not returnable$2.49 |29% OFF Phone Price : $3.49In Stock#107
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Image treadmill fan assemblyPart #188015
This item is not returnable$16.09 |11% OFF Phone Price : $18.09In Stock#8
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Treadmill front roller and pulleyPart #207247
$43.32 |12% OFF Phone Price : $49.32In Stock#10
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Black & decker exercise equipment reed switchPart #157504
This item is not returnable$10.99In Stock#75
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Filter wirePart #189813
$12.99In Stock#95
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Proform exercise equipment transport wheelPart #148803
This item is not returnable$2.99In Stock#48
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Exercise equipment star washerPart #014117
This item is not returnable$2.16In Stock- Lifestyler exercise equipment screw
Part #146427
This item is not returnable$2.16In Stock #45
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Exercise equipment screwPart #013576
This item is not returnable$2.16In Stock- Toyostove exercise equipment rubber pad
Part #157600
This item is not returnable$2.16In Stock
Symptoms for treadmills
Choose a symptom to see related treadmill repairs.
Main causes: no power, bad power cord, tripped or faulty overload switch, bad power switch, wiring failure, bad motor co…
Main causes: rear roller out of alignment, damaged walking belt, bad roller…
Main causes: missing safety key, bad control console, wiring failure, faulty motor control board, bad drive motor…
Main causes: faulty sensors, wiring failure, bad control console…
Main causes: bad control console, wiring failure, bad motor control board…
Main causes: damaged walking belt, improper belt tension, lack of belt lubricant, bad drive motor…
Main causes: damaged walking belt, improper belt tension, bad roller bearing…
Repair guides for treadmills
These step-by-step repair guides will help you safely fix what’s broken on your treadmill.

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…
Repair difficulty
Time required
15 minutes or less

How to replace a treadmill walking belt
A worn walking belt will begin to slow down during use. If your treadmill walking belt is worn out, replace it using the…
Repair difficulty
Time required
45 minutes or less

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'…
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 treadmill.

Get answers to frequently asked questions about Sears and Sears PartsDirect.…