Messages
Number Message Cause Action
INTERNAL DIAGNOSTICS
49 Problem with ultrason-
ic
The ultrasonic sensors are faulty. Replace the ultrasonic sensors. Refer
to
To replace the ultrasonic sensors
450X/450XH/550/550H on page 30
.
The ultrasonic circuit board is faulty. Replace the ultrasonic circuit board.
69 Alarm! Mower shut
down
Alarm has been activated as the prod-
uct is shut down.
Adapt the security level of the product
in the
Security menu
.
70 Alarm! Mower stopped Alarm activated as the product has
been stopped.
71 Alarm! Mower lifted Alarm activated as the product has
been lifted
72 Alarm! Mower tilted Alarm activated as the product has
been tilted
74 Alarm! Mower outside
Geofence
Alarm activated as the product was
moved outside the Geofence area.
77 Connection problems Problem with the Automower
®
connect
module.
Restart the product. If the fault persists,
refer to
To replace the communication
circuit board, 420/440 only as accesso-
ry on page 29
.
501 Electronics problem Communication problems between the
HMI circuit board and main circuit
board
Restart the product by switching off the
ON/OFF button, wait 10 seconds and
then switch on the ON/OFF button.
Make sure the cable between the HMI
circuit board and main circuit board is
connected properly. Check also that
the cable is not damaged, pinched, or
that the connector is not damaged.
Replace the HMI circuit board. Refer to
To replace the HMI circuit board on
page 29
.
Replace the main circuit board. Refer
to
To replace the main circuit board on
page 28
.
502 Electronics problem HMI circuit board memory problem Replace the HMI circuit board.
503 Electronics problem Keypad problem Make sure the cable between the HMI
circuit board and the keypad is properly
connected.
Replace the keypad. Refer to
To re-
place the keypad 420/430X/430XH/
440/450X/450XH on page 23
.
Replace the HMI circuit board.
504 Electronics problem Display problem Replace the HMI circuit board.
50 - Troubleshooting 1191 - 001 -
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