E18
Cedrus
Communication Module / GSM-WiFi Error
Robot mower displays E18 and stops; may coincide with app connection issues on smart models.
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 mobile or Wi‑Fi signal, Faulty communication module, Antenna cable disconnected, Firmware mismatch between main board and comms module
How to Fix / Troubleshooting
Safety first: Network troubleshooting does not involve the blade, but keep the mower OFF when opening covers.
- Check signal strength: Ensure the charging station area has adequate GSM or Wi‑Fi coverage for your Cedrus model.
- Reboot system: Turn OFF the mower for 60 seconds, then ON again. Restart the mobile app and re‑establish connection.
- Inspect antenna: If accessible, verify that the antenna cable is securely connected to the communication module and not damaged.
- Update firmware: Use the Cedrus app or service tool to check for firmware updates. Apply updates as recommended.
- Module replacement: If E18 persists and the mower cannot communicate even with strong signal, the communication module may need replacement by a service center.
Advertisements
Repair Difficulty
Medium
3/5
Required Part
Communication Module
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements