E6
Swan Main Control PCB Fault / Internal Electronics Error

Vacuum powers on but immediately shuts off with E6 or six red flashes, even with empty bin and clean filters

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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

Failed main control PCB in handle, Faulty trigger switch circuit, Internal short on motor driver, Firmware error

How to Fix / Troubleshooting

Safety first: Remove the battery pack before any inspection. Do not open electronic housings unless you are qualified.

  • 1. Basic reset: Remove the battery, wait 5 minutes, then refit the battery and try again. Sometimes the control board will reset.
  • 2. Check trigger and mode switches: Ensure the trigger is not physically stuck and that any power/mode buttons click cleanly. Dirt around the trigger can cause false signals; clean gently with a dry cloth.
  • 3. Inspect for visible damage: Look for signs of liquid ingress, burning smell, or scorch marks around vents. If present, stop using the vacuum.
  • 4. Eliminate attachments: Run the vacuum with no wand or floorhead attached to ensure an accessory is not shorting the system.

If E6 persists, the main control PCB (handle PCB assembly) or internal wiring is likely defective. Replacement requires disassembly of the handle and should be carried out by a qualified technician or authorised Swan service centre.

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Repair Difficulty

Professional Required 5/5

Required Part

Swan cordless vacuum main control PCB
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