Husqvarna AUTOMOWER 320 NERA Operator's Manual page 39

Mowing the grass too low right after the installation can
damage wire insulation. Damage to the insulation may
not cause disruptions until several weeks or months
later.
CAUTION:
cutting height the first weeks after
installation and then lower the height one
step at a time every second week until the
desired cutting height has been reached.
A damaged splicing of the loop wire can also lead to
disruptions several weeks after the splice was done.
A faulty splice can, for example, be the result of the
coupler not being pressed together hard enough with a
pair of pliers, or that a coupler of lower quality than the
original coupler has been used.
Note:
Please first check all known splices before
further troubleshooting is done.
A wire break can be located by gradually halving the
distance of the loop where the break may have occurred
until there is only a very short section of the wire left.
The following method does not work if
activated. Make sure first that
ECO mode on page 21 .
Refer to
1. Check that the indicator lamp in the charging
station flashes blue, which indicates a break in
the boundary loop. Refer to
charging station for boundary wire installation on
page 37 .
2. Check that the boundary wire connections to the
charging station are properly connected and not
damaged. Check that the indicator lamp in the
charging station is still flashing blue.
3. Switch the connections between the guide wire
and the boundary wire in the charging station.
Start by switching connection AL and G1. Some
models have additional guide wires . The same
procedure can be followed for them.
If the indicator lamp is lit with a solid green light,
then the break is somewhere on the boundary wire
between AL and the point where the guide wire is
connected to the boundary wire (thick black line in
the illustration).
2071 - 001 - 29.03.2023
Always select the maximum
ECO mode is
ECO mode is turned off.
LED indicator of the
AL
G1
Guide
To rectify the fault you will need boundary wire,
connector(s) and coupler(s):
a) If the suspected boundary wire is short then it
is easiest to exchange all of the boundary wire
between AL and the point where the guide wire is
connected to the boundary wire (thick black line).
b) If the suspected boundary wire is long (thick
black line) then do as follows: Put AL and G1
back to their original positions. Then disconnect
AR. Connect a new loop wire to AR. Connect the
other end of this new loop wire at the middle of the
suspected wire section.
Troubleshooting - 39