iRobot Power Regulation / LED Driver Issue

Vacuum’s LED indicators flicker or behave erratically during use.

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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

Loose battery connection, Failing voltage regulator on PCB, Damaged LED driver circuit, Intermittent wiring harness

How to Fix / Troubleshooting

Safety first: Turn OFF the vacuum and remove the battery before inspecting connections.

  • Reseat battery: Remove and reinstall the battery pack to ensure a solid connection.
  • Check for movement‑related flicker: Gently flex or move the handle while the vacuum is running (with caution). If flicker changes with movement, an internal harness may be loose.
  • Test on charger: Run the vacuum while connected to the charger (if allowed) to see if flicker stabilizes, indicating a battery issue.
  • Service PCB: Persistent erratic LEDs with a known‑good battery suggest a PCB or LED driver fault requiring board replacement.
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Repair Difficulty

Hard 4/5

Required Part

Main Control PCB
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