April 19, 2023

DIY treadmill repair

Your treadmill lets you get a cardiovascular workout at any time of day, regardless of the weather. And you can easily change your speed or incline. However, your fitness routine can suffer if your machine isn't working correctly. If you're having problems with your treadmill—maybe it won't power up or the walking belt keeps slipping—try the troubleshooting guidance below to help you narrow down the cause.

Then use our DIY treadmill repair guides for step-by-step instructions to fix the problem. For additional troubleshooting tips and advice on getting the most out of your treadmill, check out our articles page. To find the owner’s manual or a complete list of replacement parts for your treadmill, search for your model number.

Treadmills

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

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

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

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
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…

Repair difficulty
Time required
 30 minutes or less

Articles and videos for treadmills

Use the advice and tips in these articles and videos to get the most out of your treadmill.

How to enjoy all the online benefits we offer on our Sears PartsDirect website

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

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.…

How to tell if a fuse is blown

How to tell if a fuse is blown

Learn how to tell whether a fuse is blown…

How to troubleshoot treadmill problems

How to troubleshoot treadmill problems

See what to check if you're having a problem with your treadmill, and what you can do to fix it.…

How to use a multimeter to test electrical parts video

How to use a multimeter to test electrical parts video

Learn how to use a multimeter to check for wiring problems in an appliance that's not working…

Easy DIY treadmill repairs

Easy DIY treadmill repairs

Learn about treadmill repairs that you can easily do yourself.…

Treadmill common questions

Treadmill common questions

These answers to common questions can help you make the most of your treadmill.…

How to maintain a treadmill

How to maintain a treadmill

Keep your treadmill in shape by following these tips.…