Husqvarna Automower Technical Manual page 122

6. Trouble shooting
Table 11: Fault messages
Fault message
Charging station blocked
No contact in charging
station
Left collision sensor
defective
Right collision sensor
defective
122 Automower from
Cause
Automower has collided with an obstacle
in the N-field.
The charging plate (N-coil) is defective.
The contact between the charging strips
and contact strips is poor and the
Automower has made a number of
charging attempts.
The charging station leans.
Contact between the charging cable's
cable lugs and the charging strips on the
Automower is poor.
Contact between the flat-pin connectors
(2) and the contact strips on the charging
station is poor.
Contact between the charging strips on
the Automower and the contact strips in
the charging station is poor.
The charging cable connector on the
chassis is defective.
The control box on the Automower is
defective.
The Automower has jammed.
Both, or one of, the rear screws on the
body has not been tightened correctly.
The magnet in the collision sensor pillar
is loose, twisted or missing.
The collision sensor card or the cabling
is defective.
Upper section cable harness damaged.
™
Action
Is anything blocking the N-field?
The charging station may need to be moved.
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.
Check that the contact strips on the charging station
are not jammed. Round off the charging strips on the
Automower if necessary using emery cloth and
lubricate with copper paste. Also test the charging
current with the help of the Quick check function
(press and hold the 0 key down for 2 seconds). The
current (I) should be at least 1.6A.
Let the Automower dock itself in the charging station
by pressing Home. Check that the charging strips
and contact strips make good contact. Also test the
charging current with the help of the Quick check
function (press and hold the 0 key down for
2 seconds). The current (I) should be at least 1.6A. If
not, see Fault tracing for charging, page 18.
Check that the charging station does not lean to the
side and that the charging plate is not bent.
Check the cable lugs. File off any corrosion. Replace
the entire charging cable assembly if necessary.
Lift off the cover on the charging station and check
the connection.
Check that the contact strips on the charging station
are not jammed. Round off the charging strips on the
Automower if necessary using emery cloth and
lubricate with copper paste.
Check that the charging cable connectors and the
charging cables on the mower are undamaged.
Replace the control box. See page 108 to replace.
Remove the object.
Lift the body from the rear section and feel whether it
is secured correctly. If not, tighten the screws.
Check the collision sensors via Tools - Test -
Sensors (shortcut 5-2-5). Check whether the
magnets on the mower, without contact, indicate a
collision.
Check the collision sensors via Tools - Test -
Sensors (shortcut 5-2-5). Check the collision sensors
and the cabling to see whether the magnet is seated
correctly and that the mower, without contact,
indicates a collision.
Replace the cable harness.