C18
Wyze Severe Obstruction or Chassis Jam

Wyze robot vacuum shows C18 and stops; often indicates a stuck or jammed robot error beyond simple wheel obstruction.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Robot wedged under low furniture, Robot trapped on thick rug or threshold, Foreign object lodged under chassis, Internal frame misalignment after impact

How to Fix / Troubleshooting

Safety first: Turn off the robot before freeing it from tight spaces.

  • Free the robot: Gently lift the robot away from the obstacle. Avoid yanking if something is caught underneath.
  • Inspect underside: Check for objects stuck under the robot (toys, cables, rug tassels). Remove any foreign objects.
  • Check for damage: Look for cracked plastic, bent bumpers, or misaligned wheels that might indicate impact damage.
  • Use virtual walls or no-go zones: In the Wyze app, set up virtual boundaries to keep the robot away from problem areas.
  • If C18 appears even on open floor: The chassis or internal frame may be misaligned, or sensors may be misreading. This requires internal inspection and possible frame or sensor bracket adjustment by a technician.
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Repair Difficulty

Medium 3/5
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