Use and Care Manual

12 English
Trouble or fault Possible cause Action to be taken
The drill / driver
doesn’t work.
Low battery. ▶ Change the battery
and charge the empty
battery.
All 4 LEDs blink.
The drill / driver
doesn’t work.
The drill / driver has
been briefly overloaded.
▶ Release the control
switch and then press
it again.
Protection against over-
heating
▶ Allow the drill / driver
to cool down and
clean the air vents.
1 LED blinks.
The drill / driver
doesn’t work.
Low battery. ▶ Change the battery
and charge the empty
battery.
The battery is too cold. ▶ Bring the battery to
the recommended op-
erating temperature.
The battery is too hot. ▶ Bring the battery to
the recommended op-
erating temperature.
Hammer drilling is
not possible.
The operating mode is
not set correctly at the
selector ring.
▶ Set the selector ring to
the “Hammer drilling”
position .
The control switch
can’t be pressed, i.e.
the switch is locked.
The forward/reverse se-
lector switch is in the
middle (transport) posi-
tion.
▶ Push the
forward/reverse
switch to the left or
right.
The drill / driver or
the battery gets very
hot.
Electrical fault. ▶ Switch the drill /
driver off immediately,
remove the battery
and contact Hilti
Service.
The drill / driver is over-
loaded (application limit
exceeded).
▶ Check the application.
Printed: 01.02.2017 | Doc-Nr: PUB / 5329068 / 000 / 00