Husqvarna 420 Operator's Manual page 88

The robotic
lawnmower vibrates
The robotic
lawnmower runs, but
the blade disc does
not rotate
The robotic
lawnmower mows
for shorter periods
than usual between
charges
Both the mowing
and charging times
are shorter than
usual
The robotic
lawnmower often
moves in circles or
spirals
The robotic
lawnmower turns
round and stays
on a small area for
several minutes.
English - 86
1157866-26,420,430X,450X,EN_160314.indd 86
TROUBLE SHOOTING
Damaged blades lead to imbalance
in the cutting system.
Several blades in the same position
lead to imbalance in the cutting
system.
The robotic lawnmower follows a
guide wire or boundary wire to or
from the charging station.
The robotic lawnmower searches for
a guide wire or boundary wire and
the battery charge is very low.
Grass or other foreign object blocks
the blade disc.
The battery is spent.
The battery is spent.
Spiral mowing is a natural part of the
robotic lawnmower's movement patter.
This is completely normal for
Automower® 430X and 450X with
GPS navigation and contributes to an
even result.
Inspect the blades and screws and replace them
if necessary, see 8.7 Blades on page 78.
Check that only one blade is fitted per screw.
This behavior is normal and no action is required.
This behavior is normal and no action is required.
Remove and clean the blade disc, see 8.4
Cleaning on page 76.
Contact the local dealer.
Contact the local dealer.
Adjust how often spiral mowing is carried out.
This function can be deactivated if necessary.
Refer to 6.9 Settings page 61.
No action.
2016-03-14 17:00:05