Robot vacuum shows E16 or announces a timekeeping/clock error, schedules do not run.

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

Firmware corruption, RTC circuit failure on mainboard, Low backup capacitor or battery (if equipped), Power interruptions during updates

Safety: No internal access is required for basic troubleshooting.

Step 1 – Reboot robot: Turn the power switch OFF for 1 minute, then ON again.
Step 2 – Reconfigure time: In the Lefant app, set the correct time and time zone. Delete and recreate scheduled cleaning tasks.
Step 3 – Firmware update: Check for and install any available firmware updates via the app.
If E16 continues: The RTC or memory chip on the mainboard may be defective, requiring mainboard replacement.

Hard 4/5

Main Control Board

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