en
Troubleshooting
40
Robotic lawn mower
Error message
Possible cause
Solution
CN002: Lift sen-
sor
Cover has been deflected
upwards by lifting or by a
foreign body.
Remove foreign body.
CN005: Bumper
deflected
Robotic lawn mower has en-
countered an obstacle and
cannot free itself (collision
close to base station).
CN007: No loop
signal
CN017: Cal: si-
gnal weak
No loop signal.
Fault during calibration, loop
signal too weak.
Check base station power supply
Check loop
Disconnect and reconnect transformer
CN008: Loop si-
gnal weak
Loop signal weak.
Check base station power supply
Check loop, it has possibly been buried too
deep
Disconnect and reconnect transformer
CN010: Bad posi-
tion
Robotic lawn mower is outs-
ide loop.
Place robotic lawn mower in mowing area
Loop crossed-over
CN011: Escaped
robot
Robotic lawn mower has left
field.
Check routing of loop (curves, obstacles, etc.)
CN012: Cal: no
loop
CN015: Cal: outs-
ide
Fault during calibration, ro-
botic lawn mower could not
find loop.
Place robotic lawn mower at right angles to
loop, robotic lawn mower must be able to drive
over loop
Check base station power supply
Check loop
Disconnect and reconnect transformer
Loop cable crossed-over
CN018: Cal: Colli-
sion
Fault during calibration, colli-
sion
Remove obstacle
Battery flat.
Check base station for obstacles
Check base station charging contacts
Loop too long, too many islands
Robotic lawn mower has got stuck
Boundary cable defective,
robotic lawn mower does not
find base station.
Check boundary cable for interruptions, if ne-
cessary have it tested by a service partner.
Battery exhausted.
Battery service life exceeded. Have battery rene-
wed by a service partner.
CN038: Battery
Charging electronics faulty.
Have charging electronics renewed by a service
partner.
