Mammotion Overly Sensitive Collision Detection

Robot mower occasionally shuts down after hitting small obstacles, even though bumper seems fine

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

Misaligned bumper sensor, Loose bumper mounting, Firmware sensitivity settings, Internal accelerometer thresholds too low

Safety: Turn OFF the mower before adjusting the bumper.

Check bumper alignment: Ensure the bumper is centered and not rubbing against the chassis on one side.
Tighten mounts: Tighten bumper mounting screws so it moves only in the intended direction.
Firmware/app settings: In the Mammotion app, check if there are sensitivity or obstacle detection settings that can be adjusted.
If nuisance shutdowns continue, the bumper sensor or IMU calibration may require service.

Medium 3/5

Front Bumper Sensor Assembly

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