110 - English
6. TROUBLE SHOOTING
6.2.2 Fault symptoms during Searching
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 in each wheel should be least 45 cm/second
(18”/second) for the 220 AC and Solar Hybrid, and 70
cm/second (28”/second)for the 230 ACX and 260 ACX.
(The mower should be fully charged before starting the
test. Empty batteries can produce incorrect values.)
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 mo-
tor when faulty, see page 99 about replacement.
The mower does not react
when pressing the STOP
button
Defective microswitch. Check and replace the STOP button's microswitch,
located under the cutting height adjustment cover.
The mower overturns and
rolls upside down on steep
hills
Uneven weight distribution. Program the mower with the latest software. Increase
the weight over the front of the mower as needed by
installing heavy front wheels (510 20 99-01).
Automower
®
mows for long
periods in areas above hills
(plateaus)
Incorrect setting. Select open installation shape from Installation -
Installation shape.
The mower (260 ACX)
maintains a lower speed
than normal
The mower has collided with an obstacle
at full speed several times. The mower
continues to mow, but at a reduced speed
(30 cm/second) (12”/second).
Clean the ultrasonic sensors with a dry cloth or similar.
Protect objects that were not detected by the
ultrasound with the boundary wire. For more
information about the ultrasound, see
1.13.4
Ultrasonic sensor (260 ACX) on page 22.
Symptom
(searching)
Cause Action
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.
Automower
®
does not run
along the boundary wire
when it searches for the
charging station.
The set delay time does not permit
Automower
®
to start following the
boundary wire when it searches for the
charging station.
Check that the set delay time to permit Automower
®
to start following the boundary wire has elapsed. To
easily check that Automower
®
starts to follow the
boundary wire, the delay time can be set to
0 minutes.
Automower
®
does not find the strength
on the loop signal that the set corridor
width corresponds to. Automower
®
will
continue to search randomly until it
detects the boundary wire again.
When the working area is large/open and when the
distance between the boundary wire is large, choose
a wider corridor. When the working area is
small/narrow and the distance between the boundary
wire is small, choose a narrower corridor. Use the
function Test IN, see
3.4 Testing the
installation on page 50.
Automower
®
does not run
along the guide wire when
it searches for the
charging station.
Automower
®
is set to
follow the guide wire on
the left-hand side in the
direction towards the
charging station.
The set delay time does not permit
Automower
®
to start following the guide
wire when it searches for the charging
station.
Check that the set delay time to permit Automower
®
to start following the guide wire has elapsed. To
easily check that Automower
®
starts to follow the
guide wire, the delay time can be set to 0 minutes.
Symptom (mowing) Cause Action
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