Robot vacuum reports 'Error 22' / voice prompt 'Error 22: Overcurrent protection' and shuts down during cleaning.

Safety first: Turn off the robot immediately to prevent further damage. Do not continue to run the robot if it smells like burning plastic or electronics.

• 1. Inspect all moving parts:
  • Check main brush, side brush, and wheels for jams or heavy debris.
  • Clean and free all rotating components.
• 2. Check for clogs:
  • Empty the dustbin and clean the filter.
  • Inspect the suction channel for blockages.
• 3. Test components individually:
  • Run a short cleaning cycle and listen for which motor triggers the shutdown (brush, fan, or wheels).
• 4. Replace faulty module:
  • If a specific motor is hot, noisy, or not spinning freely, replace that motor module (main brush motor, side brush motor, fan, or wheel module).
• 5. If overcurrent persists after motor replacement:
  • The mainboard power stage may be damaged; replace the mainboard.