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9. TROUBLESHOOTING
9.3 Symptoms
If your robotic lawnmower does not work as expected, follow the troubleshooting guide below.
There is a FAQ (Frequently Asked Questions) on www.gardena.com which provides more detailed
answers to a number of standard questions. Contact GARDENA Central Service if you still cannot find the
reason for the fault. See Memo on page 4.
Symptom Cause Action
The robotic
lawnmower has
difficulty docking
The boundary wire is not laid in a long
straight line that is far enough out
from the charging station.
Check that the charging station has
been installed according to the
instructions in 9.4 Finding breaks in
the loop wire on page 68.
The guide wire is not inserted in the
slot at the bottom of the charging
station.
It is absolutely critical for operation
that the guide wire is perfectly straight
and is in the correct position under
the charging station. Therefore make
sure that the guide wire is always in
its slot in the charging station. See
3.6 Installation of the guide wire.
The charging station is on a slope Place the charging station on a
surface that is entirely level. See
3.2 Installation of the charging station
on page 16.
Uneven mowing
results
The robotic lawnmower works too few
hours per day.
Increase the mowing time. See
6.3 Timer on page 44.
The proportion setting is incorrect in
relation to the layout of the working
area
Check that the correct Proportion
value is selected.
The shape of the working area
requires the use of both Remote start
1 and Remote start 2 for the robotic
lawnmower to find its way to all
remote areas.
Also use Remote start 2 to steer
the robotic lawnmower to a
remote area. See 6.4 Installation,
R70Li on page 45. Applies to the
GARDENA R70Li only.
Working area too large. Try limiting the working area or
extending the working time.
See 6.3 Timer on page 44.
Dull blades. Replace all the blades and screws so
that the rotating parts are balanced.
See 8.6 Replacing the blades on
page 60.
Long grass in relation to the set
cutting height.
Increase the cutting height and then
successively lower.
Accumulation of grass by the blade
disc or around the motor shaft.
Check that the blade disc rotates
freely and easily. If not, screw off the
blade disc and remove grass and
foreign objects. See 8.3 Cleaning on
page 59.