There are several things that can cause the machine to not find the signal or drive outside the boundary wire. Try checking the points below.
See also our video on setting up a test course here: https://youtu.be/BTnutx7QYEM
- Boundary wires placed too close together can interfere with the signal. The wires must be at least 60 centimetres apart. This also applies to boundaries around an island.
- Poor connection in a boundary wire joint can be caused by moisture.
- Measure the resistance of the boundary wire; it must be a maximum of 8-10 ohms. This is done by disconnecting the boundary wire from the charging station at both ends of the wire and using a multimeter.
- Too much boundary wire can also cause signal problems. (Over 250 metres.)
- Extra wire behind the charging station. (Must be cut completely tight, must not lie curled/hanging in loops)
- The boundary wire crosses behind the charging station.
- The charging station is facing the wrong way – check that the charging station is positioned as shown below, the wire under the station must be in the red clamp.
- The inverter may be defective, causing no power to reach the installation.
- The boundary wire output on the charging station may be rusted or oxidised and cannot make a connection.
Note! In case of a boundary cable signal error
If the robotic lawnmower displays the message "Boundary Error" (boundary cable error) (models 17941 and 17947), or if the error indicator light flashes red (model 17940), there is a fault with the boundary cable signal:
- The boundary cable is too long (over 250 m).
- The boundary cable is connected incorrectly, there is moisture in a joint, or the wrong connector has been used.
- The boundary cable must NOT be stripped first when using the supplied connector.
- You can remove the ends of the boundary cable from the charging station and measure the resistance of the boundary cable with a multimeter. A new boundary cable has a resistance of approximately 2 Ohms per 100 metres. If the boundary cable's resistance measures more than 8-10 Ohms, the robotic lawnmower will show a boundary cable signal error.
- You can also make a test course with about 10 metres of boundary cable to check that the robotic lawnmower is working correctly. Remember to remove the ends of the correct boundary cable from the charging station first.
Fix the error or replace the boundary cable.
The cable that goes under the charging station must
be mounted in the red clamp marked with a “+”.
The cable that does NOT go under the charging station must
be mounted in the black clamp marked with “S1”.
Note! Excess boundary cable must NOT be placed behind the charging station!
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