Charging Error 5
iRobot Charging Overcurrent / Internal Battery Fault

Robot vacuum says “Charging Error 5” and stops charging shortly after docking.

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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 cell inside battery, Battery pack not seated correctly, Defective charging FET on main board, Incorrect replacement battery

How to Fix / Troubleshooting

Safety first: If you smell burning or see smoke, unplug the Home Base immediately and move the robot to a safe area. Do not continue charging.

Steps to resolve:

  • Reseat battery: Remove and reinstall the battery, ensuring the connector and contacts are clean and properly aligned.
  • Try another outlet: Plug the Home Base into a different wall outlet (avoid power strips or surge protectors temporarily).
  • Replace battery: If the error recurs, install a new, genuine battery pack.

When to replace parts: If Charging Error 5 persists with a new battery, the main board’s charging circuit is likely damaged and requires replacement.

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Repair Difficulty

Hard 4/5

Required Part

Battery Pack / Main Control Board
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