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9. TROUBLESHOOTING
The robotic
lawnmower runs at
the wrong time
The robotic lawnmower clock needs
to be set.
Set the clock. See 6.6 Settings on
page 51.
The start and stop times for mowing
are incorrect.
Reset the start time and stop time
settings for mowing. See 6.3 Timer
on page 44.
The robotic
lawnmower vibrates
Damaged blades lead to imbalance in
the cutting system.
Inspect the blades and screws and
replace them if necessary. See
8.6 Replacing the blades on page 60.
Many blades in the same position
lead to imbalance in the cutting
system.
Check that only one blade is fitted at
each screw.
The robotic
lawnmower runs, but
the blade disc does
not rotate
The robotic lawnmower searches for
the charging station.
No action The blade disc does not
rotate when the robotic lawnmower is
searching for the charging station.
The robotic
lawnmower mows for
shorter periods than
usual between
charges
Grass or other foreign object blocks
the blade disc.
Remove and clean the blade disc.
See 8.3 Cleaning on page 59.
Both the mowing and
charging times are
shorter than usual
The battery is spent. Replace the battery. See
8.7 Replacing the battery on page 61.
This behaviour is normal at low
temperatures (gradual increase
below 15 ˚C).
No action
The robotic
lawnmower is parked
for hours in the
charging station.
The robotic lawnmower must stand
for at least 11 hours a day in the
charging station so that the battery
can rest.. See 4.2 Using the timer on
page 35. Applies to the GARDENA
R40Li only.
No action
The cover has been closed without
the START button first being pressed.
Open the cover, press the START
button and then close the cover.
Symptom Cause Action