Finding Breaks In The Loop Wire - Husqvarna AUTOMOWER 550 Operator's Manual

Symptoms Cause
The robotic lawnmow- Damaged blades lead to imbalance in the
er vibrates. cutting system.
Too many blades in the same position lead to
imbalance in the cutting system.
Different versions (thickness) of Husqvarna
blades are used.
The robotic lawnmow- The robotic lawnmower searches for the
er runs, but the blade charging station.
disc does not rotate.
The robotic lawnmow- Grass or other foreign object blocks the blade
er mows for shorter disc.
periods than usual
The battery is spent.
between charges.
Both the mowing and The battery is spent.
charging times are
shorter than usual.
The robotic lawnmow- The robotic lawnmower is parked due to a
er is parked for hours timer setting, or because
tice has been chosen in the app.
in the charging sta-
tion.
The robotic lawnmow- Spiral cutting is a natural part of the robotic
er often moves in cir- lawnmower's movement patter.
cles or spirals.
The robotic lawnmow- This is completely normal for Automower
er turns round and 520 and Automower
stays on a small area navigation, and contributes to an even result.
for several minutes.

6.7 Finding breaks in the loop wire

Breaks in the loop wire are usually the result of
unintentional physical damage to the wire such as when
gardening with a shovel. In countries with ground frost,
also sharp stones that move in the ground can damage
the wire. Breaks can also occur due to the wire being
stretched excessively during installation.
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: Always select the maximum 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 defective 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
original 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.
52 - Troubleshooting
Action
Inspect the blades and screws and replace
them if necessary. See
on page 44 .
Check that only one blade is fitted at each
screw.
Check if the blades are of different versions.
No action. The blade disc does not rotate
when the robotic lawnmower is searching for
the charging station.
Remove and clean the blade disc. See
the robotic lawnmower on page 43 .
Replace the battery. See
Replace the battery. See
Open the app and edit the timer settings, or
Park until further no-
go to
mower.
Adjust the intensity of spiral cutting. This
function can be disabled if necessary. See
Spiral cutting on page 27 .
®
No action.
®
550 with GPS assisted
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 27 .
See
1. Check that the indicator lamp in the charging station
flashes blue, which indicates a break in the
boundary loop. See
charging station on page 50 .
To replace the blades
Battery on page 44 .
Battery on page 44 .
Dashboard and start the robotic lawn-
ECO mode is
ECO mode is turned off.
LED indicator lamp on the
362 - 002 - 06.02.2018
Clean