Hoover False Sensor Contamination Detection

Robot vacuum stops frequently with the message 'please clean sensors' but sensors appear clean.

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

Over‑sensitive cliff or front sensors, Firmware bug, Failing sensor PCB, Electrical noise on sensor lines

Safety first: Turn OFF the robot.

Re‑clean sensors: Thoroughly clean all underside cliff sensors and front IR sensors with a microfiber cloth.
Check environment: Highly reflective or black floors can confuse sensors. Test the robot in a different room with standard flooring.
Firmware update: Update the robot firmware via the Hoover app.
Factory reset: Perform a factory reset to clear any corrupted calibration data.
If issue persists: The cliff sensor array or front sensor board may be defective and require replacement.

Medium 3/5

Cliff Sensor Array

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