Bissell Obstacle Detection / Bumper Sensitivity Reduced

Robot vacuum frequently bumps hard into furniture or fails to slow down before impact.

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.

Possible Causes

Dirty front IR sensors, Sticking front bumper, Faulty bumper switch, Internal obstacle sensor misalignment

Safety first: Turn off the robot.

Clean front sensors: Wipe the front-facing IR windows with a soft cloth.
Check bumper movement: Press and release the bumper across its width to ensure it moves freely and returns smoothly.
Inspect for damage: Look for cracks or misalignment that could prevent proper bumper travel.
If behavior persists: The bumper switch or sensor board may be failing. Replace the front bumper sensor assembly.

Medium 3/5

Front Bumper Sensor Assembly

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