Husqvarna Automower 405X Workshop Manual page 40

Messages
Number Message
2 No loop signal
4 Loop sensor problem, front
40 - Troubleshooting
Cause
Boundary wire broken.
The boundary wire is not connec-
ted to the charging station.
The power supply or low voltage
cable are not connected.
The power voltage cable or low
voltage cable are damaged.
The pairing between the product
and the charging station is bro-
ken.
The boundary wire is crossed on
its way to and from an island.
Disturbances from metal objects
(fences, reinforcement steel) or
buried cables.
ECO mode is activated and the
product has attempted to start
outside the charging station.
The cabling to the sensor circuit
board is faulty or has come loose.
The front loop sensor circuit
board is faulty.
Electronic or software related
problem in the product.
Action
Check the signal given by the
LED on the charging station. If
the LED indicates a break in the
boundary wire, find out where the
break is. Replace the damaged
section of the loop with a new
loop wire and splice using an
original coupler.
Check that the boundary wire
connectors are fitted properly to
the charging station. Replace
connectors if damaged.
Check the LED status on the
charging station. If the LED is not
lit it indicates that there is no pow-
er. Check the wall socket connec-
tion and whether an earth-fault
breaker has tripped. Check that
the low voltage cable is connec-
ted to the charging station.
Replace the power supply or low
voltage cable.
Put the product in the charging
station and generate a new loop
signal. Refer to To create a new
loop signal in the Operator's man-
ual.
Check that the boundary wire has
been laid according to the instruc-
tions. Refer to To examine where
to put the boundary wire in the
Operator's manual.
Try moving the boundary wire
and/or creating additional islands
in the work area to increase the
signal strength.
Put the product in the charging
station, start the product and
close the hatch.
Check the cabling and refit the
cable or replace if necessary.
Check and replace the front loop
circuit board if necessary. Refer
To replace the front loop sen-
to
sor circuit board on page 27 .
Check the levels for the A signal.
Loop signal on page 49 .
Refer to
1582 - 001 - 23.12.2020