Robot vacuum displays E19 and reports a firmware or internal memory error.

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

Interrupted firmware update, Internal flash memory fault, Main control board failure

Safety first: Ensure the robot has sufficient battery or is on the dock.

Power cycle: Turn the main power switch OFF for 1 minute, then ON again.
Re‑flash firmware (if supported): Use the official app to check for firmware updates and apply them, ensuring the robot remains on the dock and Wi‑Fi is stable.

If E19 remains and firmware cannot be updated, the main control board may be defective and should be replaced.

Professional Required 5/5

Main Control PCB

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