See if the 2 bare ends of the antenna wire are connected to the transmitter.
If this is so, disconnect both ends of the antenna wire from the transmitter and connect another electrical wire that is 50cm shorter (with both ends bare).
If the green light is on and the transmitter is no longer beeping: the transmitter is working, this means that the circuit of the antenna wire is broken at one point or not connected correctly if you have added spools of wire.
Check along the entire length of the wire and repair the fault.
If the green light is still flashing and the transmitter is beeping: ->Contact our After Sales Service, click here
Note: The wire can be installed in the ground at a maximum depth of 7cm. If sheathed and under concrete, the maximum depth is 3cm. If the wire runs alongside a metal gate or fence, you may experience some interference, but the green light on the transmitter will not flash.