Ecovacs Cliff Sensor Error

Robot vacuum reports E3 and stops; may be associated with cliff sensor or anti-drop issues.

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 cliff sensors, Reflective or black flooring, Failed cliff sensor, Loose sensor wiring

Safety first: Turn the robot OFF.

Clean underside sensors: Wipe all cliff sensor windows with a soft cloth.
Test on different floor: Move the robot to a light-colored, non-reflective floor and test.

If E3 persists: Replace the cliff sensor module or have a technician inspect the wiring.

Medium 3/5

Cliff Sensor Module

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