E12
Hoover
Wi‑Fi / Main Board Communication Fault
Robot vacuum shows E12 and cannot connect to Wi‑Fi or app; may say 'communication error'.
Advertisements
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.
Advertisements
Possible Causes
Weak Wi‑Fi signal, Incorrect Wi‑Fi password, Faulty Wi‑Fi module, Main control PCB communication error
How to Fix / Troubleshooting
Safety first: No internal high-voltage work is required for this step.
- Check Wi‑Fi network: Ensure your router is on 2.4 GHz (many Hoover robots do not support 5 GHz) and that the signal is strong where the dock is located.
- Reset Wi‑Fi on robot: Follow the user manual to enter Wi‑Fi setup mode (often by holding a specific button until a tone or voice prompt).
- Re-add in app: Use the Hoover app to add the robot again, entering the correct Wi‑Fi password.
- Power cycle robot and router: Turn the robot OFF and unplug the router for 30 seconds, then power both back on.
- If E12 persists and robot also fails basic functions: The internal Wi‑Fi module or main control PCB may be faulty. Replacement of the main control board is typically required and should be done by a service center.
Advertisements
Repair Difficulty
Hard
4/5
Required Part
Main Control PCB
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements