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(WR147) LANDROID M 20V 4.0 AH ROBOTIC LAWN MOWER (1/4 ACRE)
Possible cause: Wire has been cut
Try this solution
Reconnect to main line and check for a break in the boundary wire
There are two ways to check for breaks
If you have a small portable AM radio at hand, tune it to approximately 700kHz. Fine-tune it making sure you cannot hear any station. Fully extend your radio's telescopic antenna and point it to the ground. Because the wire loop acts as an antenna, you will hear a disturbance noise. The closer the tip gets to the wire, the louder the noise. Keep the radio's antenna as close as possible to the wire. When you reach the broken/damaged point, you will hear a substantial drop of the noise level. Repair the wire using the wire repair connector.
Get a loop wire break detector at your local electricity store or online. Clamp the red and black terminals of the device to the two stripped ends of the boundary wire loop, then follow the wire with the tip of the detector as close as possible to the wire. The detector will emit a sound that gets louder the closer you are to the wire. We recommend using headphones. As the sound level drops substantially, you have reached the break/damage point. Repair the wire using the wire repair connector.
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