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19 Troubleshooting
19.1 Remedying Faults in the Blower or Battery
19 Troubleshooting
Fault LEDs on the 
battery
Cause Remedy
The vacuum 
shredder does not 
start when switched 
on.
1 LED flashing 
green.
State of charge of the 
battery is too low.
► Charge the battery.
1 LED emits red 
light.
The battery is too warm or 
too cold.
► Remove the battery.
► Allow the battery to cool down or warm up.
3 LEDs flashing 
red.
There is a fault in the 
vacuum shredder.
► Remove the battery.
► Clean electrical contacts in the battery 
compartment.
► Insert battery.
► Switch the vacuum shredder on.
► If 3 LEDs continue to flash red: Do not use the 
blower and contact your STIHL dealer for 
assistance.
3 LEDs light 
up red.
The vacuum shredder is 
too hot.
► Remove the battery.
► Wait for the vacuum shredder to cool down.
4 LEDs flashing 
red.
There is a fault in the 
battery.
► Remove battery and reinsert it.
► Switch the vacuum shredder on.
► If 4 LEDs continue to flash red: Do not use the 
battery and contact your STIHL dealer for 
assistance.
No electrical contact 
between the vacuum 
shredder and the battery.
► Remove the battery.
► Clean electrical contacts in the battery 
compartment.
► Insert battery.
The vacuum shredder or 
battery is damp.
► Allow the vacuum shredder or battery to dry.