Husqvarna AUTOMOWER 420 Operator's Manual page 40

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Cause
Outside work area
The boundary wire connections to the charg-
ing station are crossed.
The boundary wire is too close to the edge of
the work area.
The work area slopes too much by the boun-
dary loop.
The boundary wire is laid in the wrong direc-
tion around an island.
Disturbances from metal objects (fences, re-
inforcement steel) or buried cables close by.
The product finds it hard to distinguish the
signal from another product installation close
by.
Empty battery
The product cannot find the charging station.
The battery is spent.
The charging station's antenna is defective.
No drive
The product has hit an obstacle and stopped
or the wheels cannot move on the wet grass.
The work area includes a steep slope.
The guide wire is not laid at an angle on a
slope.
Wheel motor overloa-
Grass or other objects is wound around the
ded
drive wheel.
40 - Troubleshooting
Action
Make sure that the boundary wire is connec-
ted correctly to the charging station. Refer to
To install the boundary wire on page 21 .
Make sure that the boundary wire is put
To install the boun-
down correctly. Refer to
dary wire on page 21 .
Try to move the boundary wire and/or make
more islands in the work area to increase the
signal strength.
Put the product in the charging station and
generate a new loop signal. Refer to
ate a New loop signal on page 26 .
Change the position of the guide wire. Refer
To install the guide wire on page 21 .
to
Check the installation settings about how to
find the charging station. Refer to
the product finds the charging station on
page 28 .
Replace the battery. Refer to
page 37 .
Check if the indicator lamp in the charging
Indicator lamp in
station flashes red. Refer to
the charging station on page 45 . This prob-
lem requires action by authorized service
technician.
Free the product and rectify the reason for
the lack of drive. If it is due to wet grass, wait
until the lawn has dried before using the
product.
Maximum guaranteed slope is %. Steeper
slopes should be isolated. Refer to
the boundary wire in a slope on page 17 .
If the guide wire is laid on a slope, it must be
laid at an angle across the slope. Refer to
make a secondary area on page 19 .
Examine the drive wheel and remove grass
or other objects.
1201 - 005 - 19.03.2021
To cre-
To set how
Battery on
To put
To

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