E7
AEG Motor Driver / PCB Fault

Vacuum shows E7 or rapid red flashing when starting, motor does not spin

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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, Shorted MOSFET in motor driver circuit, Internal wiring harness damage, Liquid ingress on electronics

How to Fix / Troubleshooting

Safety first: Switch OFF the vacuum, remove the battery (if removable), and disconnect from charger. Do not open the sealed electronics housing if you are not qualified.

  • Step 1 – Check for liquid damage: Inspect the exterior of the AEG handheld unit for signs of liquid spills, corrosion around vents, or sticky residue. If the unit was used to pick up liquids, internal damage is likely.
  • Step 2 – Reset the unit: Remove the battery for 5 minutes (or leave off the charger for 10 minutes on fixed-battery models). Reinstall and attempt to power on again.
  • Step 3 – Test with minimal load: Remove all accessories and filters, leaving only the bare handheld unit (if safe per manual). Try to start the motor. If E7 persists, the fault is internal.
  • Step 4 – Do not bypass safety circuits: Avoid any attempt to short contacts or bypass the PCB. This can cause fire or further damage.
  • Step 5 – Professional repair: The main control PCB or motor driver components must be replaced as an assembly. Contact an authorised AEG service center and provide the model and serial number.
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Repair Difficulty

Professional Required 5/5

Required Part

AEG Main Control PCB
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