Trifo Reduced Obstacle Detection / Bumper Sensitivity Loss

Robot vacuum bumps into furniture harder than usual and does not slow down

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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

Bumper stuck or misaligned, Bumper springs weakened, Bumper switches not actuating, Camera or IR sensors dirty (on camera models)

How to Fix / Troubleshooting

Safety first: Turn OFF the robot before manipulating the bumper.

  • 1. Check bumper movement: Press the bumper across its width and ensure it moves freely and returns smoothly.
  • 2. Clean bumper gap: Remove dust and debris from the gap between the bumper and body.
  • 3. Clean front sensors: Wipe any front-facing IR or camera lenses with a microfiber cloth.
  • 4. Internal inspection (advanced): Open the robot and verify that the bumper switch board is secure and that the switches click when the bumper is pressed.

Warning: A non-functioning bumper can cause damage to furniture and the robot. If you cannot restore proper operation, seek professional repair.

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Repair Difficulty

Medium 3/5

Required Part

Front Bumper Sensor Assembly
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