124 Automower from
6. Trouble shooting
™
6.2 Fault symptom, General
Table 12: Fault symptom, General
Symptom Cause Action
Uneven mowing results The Automower works too few hours per
day.
Increase the working hours.
Working area too large. Try to limit the working area or extend the working
time.
Dull blades. Replace all the blade units so that the rotating parts
are balanced.
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 skid plate and the blade disc rotate
freely and easily in relation to each other. If not, the
skid plate and perhaps the blade disc must be
removed and the grass and foreign objects removed.
The Automower works at
the wrong time.
The clock on the Automower needs to be
set.
Set the clock.
The start and stop times for mowing are
incorrect.
Adjust the start and stop time setting for mowing. The
battery in the control box may need to be replaced,
see page
112.
The Automower vibrates Unbalanced blade disc or damaged
blades.
Inspect the blade and screws and replace them if
necessary.
Automower runs, but the
blade disc does not rotate
Automower is searching for the charging
station.
No action The blade disc does not rotate when the
mower is searching for the charging station.
The mower mows for
shorter periods than usual
between charges
Grass or a foreign object is blocking the
blade disc or skid plate.
Dismantle and clean the skid plate and blade disc.
Both the mowing and
charging times are shorter
than usual
This behaviour is normal in high
temperatures (gradually increasing
above 25
°C).
No action.
Automower runs at an
angle or in an arc.
The tilt sensor is calibrated incorrectly.
The mower believes it is climbing a slope
and tries to compensate for this.
Calibrate the tilt sensor by selecting Tools - Special
settings - Calibrate tilt sensor (shortcut 5-6-3)
The tilt sensor is defective. Replace the control box, see page 108 about
replacement.
Automower runs in a small
circle or one of the wheels
locks when turning
instead of rotating
backwards.
The wheel motor's gearbox is slipping. Check the function of the wheel motors when free
wheeling via Tools - Test - Power & Motors – Wheel
motors (shortcut 5-2-1-1) or with Autocheck. Check
that both wheel motors start with a force of 50 %.
Now increase the force using Arrow up to 100
%. At
100
% the speed of each wheel should be at least
45
cm/seconds. Check to make sure that the motors'
gearboxes do not slip by blocking respective wheels.
When blocked the speed should be 0
cm/second.
Replace the wheel motor when faulty, see page
115
about replacement.
The Automower reaches
the F-field, but does not
interpret the N-signal.
The charging plate (N-coil) is defective. Check the N-signal from the charging station: Place
the Automower in the test position and then check
the value via the Quick check function (Press and
hold the 0 key down for 2
seconds). The N-coil is
defective if the value for N is lower than 100. The
charging plate must be replaced.
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