Wyze robot vacuum Left and right wheels do not rotate / abnormal noise

Check whether the side wheel is jammed or entangled by foreign matters

Regularly check cleaning attempts.

The plastic gear inside is likely stripped a few teeth.
Mine did similar and I took it apart to find the main wheel hear missing 2 teeth.
The replacement parts can be found using the alternate information make: Xiaomi model: STYJ02YM
Best place is either Amazon or Aliexpress, to get a wheel assembley replacement.

Good Luck.

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