E19
Kyvol Main Control Board Fault

Robot vacuum reports E19 and stops; may coincide with random shutdowns or reboots.

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Safety Warning

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.

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Possible Causes

Shorted component on main PCB, Corrosion from liquid ingress, Loose internal connectors, Firmware corruption

How to Fix / Troubleshooting

Safety: Disconnect from dock and turn OFF before opening the housing.

  • 1. Power cycle:
    • Turn OFF the robot, wait 1 minute, then turn it ON.
    • Try a factory reset via the app or button sequence (see Kyvol manual).
  • 2. Inspect for liquid damage:
    • Open the top/bottom cover to access the main board.
    • Look for signs of moisture, corrosion, or burnt components.
  • 3. Reseat connectors:
    • Gently unplug and replug the main harness connectors (battery, motors, sensors) one at a time.
  • 4. Firmware update:
    • If the robot can still connect to the app, check for and apply firmware updates.
  • 5. Board replacement:
    • If E19 persists and there is visible damage or repeated random reboots, replace the main control board or seek professional repair.
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Repair Difficulty

Professional Required 5/5

Required Part

Main Control Board
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