SilverCrest False Stuck Detection / Bumper or Cliff Sensor Misread

Robot vacuum stops in the middle of the room and says it is stuck, but there is no visible obstacle.

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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

Sticky front bumper, Dirty cliff sensors, Loose internal sensor cable, Firmware sensitivity issue

How to Fix / Troubleshooting

Safety first: Turn off the robot before cleaning sensors and bumper.

  • 1. Clean bumper gap: Remove dust and hair from around the SilverCrest front bumper so it can move freely.
  • 2. Clean cliff sensors: Wipe all underside cliff sensors with a soft cloth.
  • 3. Test on different floor: Try running the robot on a different surface (e.g., light‑colored hard floor) to see if the issue is related to specific carpets or patterns.
  • 4. Firmware update: Update the robot firmware via the SilverCrest app to improve stuck detection logic.
  • 5. Inspect internal cables (advanced): If the problem persists, open the housing and check that bumper and cliff sensor cables are secure. Replace the SilverCrest bumper or cliff sensor board if faulty.
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Repair Difficulty

Medium 3/5

Required Part

SilverCrest Front Bumper Sensor Assembly
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