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25 Troubleshooting Guide
25.1 Chain Saw and Battery
25 Troubleshooting Guide
Always remove the battery before carrying out any inspection, cleaning or maintenance.
Condition LEDs on
Battery
Possible Cause Remedy
Chain saw does not
start when switched
on.
No electrical contact
between chain saw
and battery.
► Remove the battery, @ 17.2.
► Engage the chain brake, @ 16.1.
► Visually check the electrical contacts in the battery
compartment and on the battery.
► Reinsert the battery, @ 17.1.
1 LED flashes
green.
STIHL AR only:
Additionally,
four long beeps
are emitted.
Battery has low
charge.
► Charge the battery, @ 12.
1 LED glows
red.
Battery too hot / too
cold.
► Allow the battery to warm up or cool down gradually at
ambient temperatures of about 50 °F to 68 °F (10 °C to
20 °C).
4 LEDs flash
red.
STIHL AR only:
Additionally, a
rapid
succession of
short beeps is
emitted.
Malfunction in
battery.
► Remove the battery and reinsert it, @ 17.
► Switch on the chain saw, @ 18.1.
► If the LEDs continue to flash, do not attempt to use.
The battery has a malfunction and must be replaced.
3 LEDs glow
red.
Chain saw too hot. ► Allow the chain saw to cool down.
3 LEDs flash
red.
Malfunction in chain
saw.
► Remove the battery and reinsert it, @ 17
► Switch on the chain saw, @ 18.1.
► If the LEDs still flash, do not attempt to use.
The chain saw has a malfunction and must be checked by
a servicing dealer.
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