Upon removing the motor cover I found that one of the DC motor brush holder assembly was broken, allowing the brush retention spring to pop out. I reinserted the assembly and insured that it was going to stay in using a strong adhesive.
The belt was a little out of adjustment which I fixed, as well as a mispositioned end cap.
I do not recommend this treadmill. It is too light duty and too cheaply made for the serious treadmill user. The motor is 1100 watts which translates to a very light duty 1.5 HP. That along with a very light duty motor control card. Neither of these components would be able to stand too much DC amp draw caused by a heavy user (body weight) or less than a well maintained treadmill, keeping it clean, well adjusted, and well lubricated walk belt and deck.
This treadmill may be fine for the light (body weight) user for walking only that is handy and can keep it well maintained. Even then I do not see that this treadmill will have a long life. Even the drive belt was the smallest light duty belt that I have ever seen on a treadmill.
The only benefit that I can see is it’s small size for those that have little space. Its light weight, only 62 pounds, and its low price which was $299.99 on Amazon as of this writing.