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22 Troubleshooting Guide
Depressions or obstacles in the
mowing area.
► Fill up holes in the mowing area, install restricted
areas around obstacles such as exposed roots,
remove obstacles.
Impact sensor is not activated
when the robotic mower hits an
obstacle.
Low obstacle (height less than
3.9 in. (10 cm)).
► Remove the obstacle or block it off with a restricted
area,
The obstacle is not firmly
attached to the ground – e.g.
fallen fruit or tennis ball.
► Start all mowing operations at the docking station in
suitable mowing areas,
Driving tracks at edge of mowing
area.
Too frequent edge mowing.
► Switch off edge mowing or reduce it to once per
week,
Starting points in use.
► Start all mowing operations at the docking station in
suitable mowing areas,
Battery is charged very frequently
towards the end of its service life.
► Have the battery replaced by an authorized STIHL
iMow servicing dealer.
Offset drive home (passage) not
switched on.
► Switch on offset drive home,
Unmowed grass at edge of
mowing area.
Edge mowing switched off.
► Mow the edge once or twice per week,
Perimeter wire routed
inaccurately.
► Check the routing of the perimeter wire,
► Check the clearances with the iMow Ruler,
Grass is out of reach of mowing
blade.
► Cut the unmowed areas regularly using a suitable
grass trimmer.
No wire signal
Docking station switched off – the
LED is off.
► Switch on the docking station,
Docking station not connected to
electrical socket – the LED is off.
► Check power supply to the docking station,
Perimeter wire not connected to
the docking station – red LED
flashes.
► Connect the perimeter wire to the docking station,
Break in perimeter wire – red LED
flashes.
► Search for wire break (
22.3), then repair
perimeter wire using wire connectors,
Robotic mower and docking
station are not linked.
► Link robotic mower and docking station,
10.6.
Robotic mower and docking
station are not linked.
► Link robotic mower and docking station,
10.6.
Electronics error.
► Contact an authorized STIHL iMow servicing dealer.
Always activate the disabling device before carrying out any inspection, cleaning or maintenance.
Condition
Possible Cause
Remedy