E11
Roidmi
Wireless Module Communication Fault
Vacuum cannot connect to the Roidmi app; app shows E11 or a Wi‑Fi/Bluetooth error.
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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
Bluetooth/Wi‑Fi module failure on PCB, Firmware corruption, Interference from other devices, App version incompatibility
How to Fix / Troubleshooting
Safety first: Wireless issues do not affect electrical safety, but keep the unit powered off while not in use.
- Ensure your phone's Bluetooth and/or Wi‑Fi are enabled and that you are using the latest Roidmi app version.
- Move away from strong interference sources (microwave ovens, routers, metal cabinets).
- Reset the vacuum's network settings (usually by holding a specific button combination; see the user manual).
- If pairing still fails and E11 persists, the wireless module on the main PCB may be defective. This requires replacement of the main control PCB or main body assembly.
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Repair Difficulty
Hard
4/5
Required Part
Main Control PCB
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