19 Repairing
19 Repairing
19.1
Repairing the Mower and Bat‐
tery
The mower, blade and battery cannot be
repaired by the user.
► If the mower or the blade is damaged: Do not
use your mower and contact your STIHL serv‐
icing dealer for assistance.
20 Troubleshooting
20.1
Remedying errors in the lawn mower or battery
Error
LEDs on the
battery
The lawn mower
1 LED flashes
does not start
green.
when switched
on.
1 LED lights up
steady red.
3 LEDs flash
red.
3 LEDs light up
red.
4 LEDs flash
red.
Self-propulsion is
not working.
The lawn mower
3 LEDs light up
switches off
red.
0478-131-9950-D
► If the battery has a malfunction or is damaged:
Replace the battery.
► If safety labels are illegible or damaged: Have
the labels replaced by a STIHL servicing
dealer.
Cause
State of charge of the
battery is too low.
The battery is too
warm or too cold.
There is an error in
the lawn mower.
The lawn mower is
too warm.
There is an error in
the battery.
There is a break in the
electrical connection
between the lawn
mower and the bat‐
tery.
The lawn mower or
the battery is damp.
The resistance on the
cutting blade is too
high.
The area around the
cutting blade is
blocked.
There is an error in
the self-propulsion
mechanism.
The lawn mower is
too warm.
Remedy
► Charge the battery.
► Remove the battery.
► Allow the battery to cool down or warm
up.
► Remove the batteries.
► Clean the electrical contacts in the bat‐
tery compartments.
► Insert the battery.
► Switch on the lawn mower.
► If 3 LEDs continue to flash red: Do not
use your lawn mower and instead con‐
tact a STIHL authorized dealer.
► Remove the batteries.
► Allow the lawn mower to cool down.
► Remove the battery and reinsert it.
► Switch on the lawn mower.
► If 4 LEDs continue to flash red: Do not
use the battery and instead contact a
STIHL authorized dealer for assistance.
► Remove the batteries.
► Clean the electrical contacts in the bat‐
tery compartments.
► Insert the battery.
► Remove the batteries.
► Clean the lawn mower.
► Allow the lawn mower or batteries to dry,
21.6.
► Increase the cutting height.
► Switch on the lawn mower in shorter
grass.
► Clean the lawn mower.
► Contact a STIHL authorized dealer.
► Remove the batteries.
► Allow the lawn mower to cool down.
► Clean the lawn mower.
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