E15
Roidmi
Internal Power Supply / DC-DC Converter Fault
Vacuum shows E15 and shuts down when switching modes; sometimes accompanied by flickering LEDs.
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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 DC-DC converter on main PCB, Shorted component on control board, Loose internal connector, Moisture damage to electronics
How to Fix / Troubleshooting
Safety first: Remove the battery immediately and do not continue to operate the unit.
- Inspect the main body vents for signs of moisture or liquid ingress. If the unit was exposed to water, do not power it on.
- Allow the vacuum to dry in a warm, dry room for at least 48 hours if minor moisture is suspected (no visible pooling water).
- Reinstall the battery and test briefly. If E15 persists or there is any burning smell, discontinue use.
- The main control PCB will typically need replacement. This repair involves opening the main body and should be performed by a qualified technician.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Control PCB
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