E20
Numatic Firmware / Configuration Error

Vacuum shows a general fault icon immediately after firmware or model update (where applicable)

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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

Interrupted firmware update, Incompatible control PCB version, Corrupted configuration data, Incorrect region or model setting

How to Fix / Troubleshooting

Safety first: Do not attempt to flash firmware unless instructed by Numatic support.

  • Power reset: Remove the battery for several minutes, then refit and test again.
  • Check model compatibility: Ensure any accessories or batteries used are correct for your exact model variant.

Firmware-related faults generally require service center tools to correct. Contact Numatic support or an authorized technician.

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Repair Difficulty

Professional Required 5/5

Required Part

Control PCB
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