18 Troubleshooting
18 Troubleshooting
18.1 Troubleshooting Trimmer or Battery
Condition
LEDs on Battery
Trimmer does not
1 LED flashes
start when switched
green.
on.
1 LED glows red. Battery too hot or too cold. ► Remove the battery.
3 LEDs flash red. There is a malfunction in
3 LEDs glow red. Trimmer is too hot.
4 LEDs flash red
Trimmer cuts out
3 LEDs glow red. Trimmer is too hot.
during operation.
Trimmer runtime is
too short.
0458-284-9921-A
Cause
Battery has low charge.
the trimmer.
There is a malfunction in
the battery.
No electrical contact
between trimmer and
battery.
Trimmer or battery damp.
There is a electrical
malfunction.
Battery not fully charged.
Normal battery life has
been exceeded.
Remedy
► Recharge the battery fully as described in the
instruction manual for the STIHL AL 101, 300, 500
chargers.
► Allow battery to cool down / warm up.
► 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.
► Remove the battery.
► Allow trimmer to cool down.
► 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.
► Remove the battery.
► Clean contacts in battery compartment.
► Fit the battery.
► Allow trimmer or battery to dry.
► Remove the battery.
► Allow trimmer to cool down.
► Remove battery and insert it again.
► Switch on the trimmer.
► Recharge the battery fully as described in the
instruction manual for the STIHL AL 101, 300, 500
chargers.
► Replace the battery.
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