Will This Part Fix My Treadmill?

Why Diagnosing First Matters

The Real Cost of Guessing

When customers guess and order the wrong part, it often leads to more problems such as:

• Lost time waiting for returns

• Triples the shipping costs

• A broken treadmill still sitting in your garage, interrupting your fitness routine
  
  

Understanding the Restocking Fee

Treadmill Doctor offers flexible returns but mis-ordered parts are subject to a restocking fee and cannot be returned dirty. This fee helps cover handling, inspection, and repackaging.

The Most Common Mistakes We See

• Ordering by the model name and not the complete model number

• Ordering the belt when the issue is the motor

• Ignoring strange noises or smells

• Replacing one part when two are failing (e.g., belt and deck)

• Not calibrating newly installed control boards

• Not lubing the walking belt at regular intervals (Every 3 – 6 months)

Treadmill Doctor’s Troubleshooting Checklist (Free)

✅ Belt Slippage

• Is the drive belt properly tensioned?

• Is the walking belt properly tensioned?

• Has the front roller pulley broken loose from the front roller?

• Can you feel it drag or stutter underfoot?

• Has the walking belt been lubricated?

• Did any lube possibly get on the drive belt?

• Do you see black dust around the drive belt or on the floor at the rear of the treadmill?

✅ Motor Noise

• Does the motor hum but not spin?

• Is there a burnt smell or clicking?

• Is the motor overheating?

• Have you checked the brushes?

• Have you confirmed the noise is coming from the motor and not the front roller or drive belt?

✅ Power Issues

• Does the console light up?

• Is the safety key properly in place?

• Have you checked the Circuit Breaker/Power Switch on the machine?

• Is there power at the home outlet?

• Are there any LEDs lit on the control board down by the motor?

✅ Console Errors

• Do you have an error code?

• Does the incline and/or speed function fail to respond?

• Are buttons lagging or unresponsive, do they beep when pressed?

• Does the console display the correct information?

• Does the display remain lit when you remove the safety key?

• Is the display stuck on the boot up screen?

Use Our Diagnostic Tools (Built for Non-Techies)

Still not sure? That’s what our Diagnostic Tools are for.

With just a few clicks, we’ll guide you step-by-step — no tech skills needed. Answer a few questions about what your machine is doing, and we’ll tell you what part is likely causing the problem.

👉 Click here to diagnose your machine in 2 minutes »

Still Unsure? Here’s What to Do

• Chat with a Part Expert: Our team can walk you through a part match

• Need to Return Something? Email customer.service@treadmilldoctor.com

• Worried About Fit? Please ask one of our experienced sales team members before placing your order

✅ Diagnose Before You Order

It’s the fastest way to get your treadmill fixed — the right way, the first time.

📩 Start Your Diagnosis Now »