ANTHBOT Error E305: Weak RTK Signal or Boundary Position Problem
Error E305 troubleshooting checks whether the mower is inside its map and whether RTK reception is blocked or unstable.
Reviewed October 7, 2026 by RobotMower.help. Independent guidance checked against the official support source linked below.
Quick answer
Confirm the mower is inside the mapped boundary, move it away from obstructions and avoid testing during rain or weak-signal conditions.
E305 at a glance
| Mower | ANTHBOT robot mower |
|---|---|
| Code | E305 |
| What the official steps point to | RTK signal or mapped-boundary positioning problem |
What E305 means
ANTHBOT directs E305 owners to verify the mower is operating within its mapped boundary and to inspect obstacles around both the mower and RTK base station. Weather and weak reception can also contribute.
Fix ANTHBOT robot mower E305 step by step
- 1. Check the app map and confirm the mower is within the saved boundary.
- 2. Move the mower into an open area inside the map.
- 3. Inspect the RTK base station for nearby walls, eaves, fences or tall shrubs.
- 4. Confirm the station is secure and has not shifted.
- 5. Wait for better conditions if heavy rain or weak signal is present.
- 6. Restart once and test from a known open point.
Check these conditions before resetting anything
- The mower is clearly inside the mapped area.
- The RTK station has a clear view.
- The station mount is secure.
- The test is not being performed in poor weather.
Avoid remapping during unstable reception. A bad signal while creating a new boundary can replace a good map with a less reliable one.
How to verify the fix
The mower should obtain a stable position inside the map and resume work without E305.
If the same code returns, record the exact time, mower location, indicator status and any earlier alert. That sequence is more useful to support than repeated resets.
When to contact support
Contact ANTHBOT if E305 returns in an open mapped area with normal RTK station status. Send the app screenshot and a photo of the installation.
Frequently asked questions
Can rain contribute to E305?
ANTHBOT recommends avoiding operation in rain or weak-signal conditions while troubleshooting E305.
Should I check the mapped boundary?
Yes. Confirm the mower is operating inside the saved boundary.
What can block RTK reception?
Walls, eaves, fences and tall bushes can obstruct the mower or base station.
Related robot mower help
Source and scope
Primary reference: official ANTHBOT support guidance for E305.
RobotMower.help is independent and is not affiliated with or endorsed by ANTHBOT. This guide explains owner-safe checks and does not replace the manufacturer manual or professional service.