Nordic Track Exercise & Fitness - Page 7 - Recent Questions, Troubleshooting & Support

It probably has to do with the belt overheating the motor and irritating your controller. Try replacing the walking belt.

The motor is fine, you need and new walking belt and possibly a deck.

To have a washer between the wire and the screw is always a good idea to prevent damage to the wire when fastening it. Make sure it cant get loose.

The treadmill is set for kilometers, not miles. With the stop button pressed, insert the safety key/magnet. This will display miles (or Kms) and hours of use. There will also be a "M" for metric or "E" for english, or miles. Use the speed up/down buttons to adjust to "E".

Drive belt appears to have stretched. Happens over time. Needs replacement - available from the manufacturer and this site. https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2380057.m570.l1313.TR1.TRC0.A0.H0.Xnordic+track+c1900.TRS0&_nkw=nordic+track+c1900&_sacat=0

There is no such wire schematic for that machine.