17 Maintenance
17.1
Maintenance Intervals
The maintenance intervals are dependent on the
environmental and operating conditions. STIHL
recommends the following maintenance inter‐
vals:
Every 12 months
► Have the trimmer checked by a STIHL servic‐
ing dealer.
18 Repairing
18.1
Repairing the Trimmer, Battery
and Charger
The trimmer, cutting attachment, battery and
charger are not user serviceable.
► If the trimmer or cutting attachment is dam‐
aged: Do not use your trimmer or cutting
attachment and contact your STIHL servicing
dealer.
► If the battery has a malfunction or is damaged:
Replace the battery.
► If the charger has a malfunction or is dam‐
aged: Replace the charger.
► If the connecting cable has a malfunction or is
damaged: Do not use the charger and have
connecting cable replaced by a STIHL servic‐
ing dealer.
19 Troubleshooting
19.1
Troubleshooting Trimmer or Battery
Condition
LEDs on Bat‐
tery
Cause
Remedy
Trimmer does
not start when
switched on.
1 LED flashes
green.
Battery has low
charge.
► Charge the battery.
1 LED glows
red.
Battery too hot or too
cold.
► Remove the battery.
► Allow battery to cool down or warm up.
3 LEDs flash
red.
There is a malfunction
in the trimmer.
► Remove the battery.
► Clean contacts in battery compartment.
► Fit the battery.
► Switch on the trimmer.
► If 3 LEDs continue to flash red: Do not
use your trimmer and contact your
STIHL dealer for assistance.
3 LEDs glow
red.
Trimmer is too hot.
► Remove the battery.
► Allow trimmer to cool down.
4 LEDs flash
red
There is a malfunction
in the battery.
► Remove battery and insert it again.
► Switch on the trimmer.
► If 4 LEDs continue to flash red: Do not
use the battery and contact your STIHL
dealer for assistance.
No electrical contact
between trimmer and
battery.
► Remove the battery.
► Clean contacts in battery compartment.
► Fit the battery.
Trimmer or battery
damp.
► Allow trimmer or battery to dry.
Trimmer cuts out
during operation.
3 LEDs glow
red.
Trimmer is too hot.
► Remove the battery.
► Allow trimmer to cool down.
There is a electrical
malfunction.
► Remove battery and insert it again.
► Switch on the trimmer.
Trimmer runtime
is too short.
Battery not fully char‐
ged.
► Fully charge the battery.
17 Maintenance
English
0458-832-9821-B
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