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17 Troubleshooting
17.1 Troubleshooting Battery or Cordless Product
Condition
LEDs and beeps
Cordless product
1 LED flashes
does not run after
green and 4 long
switch-on or cuts out
beeps sound.
during operation.
1 LED glows red.
3 LEDs flash red.
3 LEDs glow red.
4 LEDs flash red
and short beeps
sound in quick
succession.
Runtime of cordless
product is too short.
Charge process does
1 LED glows red.
not start when AP
adapter is inserted in
the charger.
34
Cause
Battery has low charge.
Battery too hot or too cold. ► Disconnect the battery.
There is a malfunction in
the battery.
Cordless product too hot.
There is a malfunction in
the battery.
No electrical contact
between cordless product
and battery.
Cordless product or battery
damp.
Battery not fully charged.
Normal battery life has
been exceeded.
Battery too hot or too cold. ► Leave AP adapter in the charger.
Remedy
► Recharge the battery fully as described in the
instruction manual for the STIHL AL 300 and AL
500 chargers.
► Allow battery to cool down or warm up.
► Disconnect battery and then reconnect it.
► Switch on the cordless product.
► If 3 LEDs continue to flash red: Contact a STIHL
servicing dealer for assistance.
► Disconnect the battery.
► Wait for cordless product to cool down.
► Take the battery off your back.
► Disconnect battery and then reconnect it.
► Switch on the cordless product.
► If 4 LEDs continue to flash red and short beeps
sound in quick succession: Do not use or transport
the battery, contact your STIHL servicing dealer.
► Disconnect battery and then reconnect it.
► If the cordless product still does not run when
switched on or cuts out during operation: Clean
contacts of the connecting cable.
► Allow cordless product / battery to dry.
► Recharge the battery fully as described in the
instruction manual for the STIHL AL 300 and AL
500 chargers.
► Replace the battery.
Charge process starts automatically as soon as
permissible temperature range is reached.
17 Troubleshooting
0458-794-9921-C
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