Troubleshooting - Hilti SF 18-A Manual De Instrucciones

8 Troubleshooting

Fault
The power tool does-
n't run.
The power tool does-
n't run and all 4 LEDs
blink.
The power tool does-
n't run and 1 LED
blinks.
No hammering ac-
tion.
The on / off switch
can't be pressed, i.e.
the switch is locked.
The battery runs
down more quickly
than usual.
The battery doesn't
engage with an audi-
ble double click.
Printed: 22.06.2015 | Doc-Nr: PUB / 5226599 / 000 / 01
Possible cause
The battery is
discharged or is not
pushed all the way in.
Electrical fault.
The power tool has been
overloaded.
The overheating preven-
tion cut-out has been
activated.
The battery is
discharged.
The battery is too hot or
too cold.
The torque and operat-
ing mode setting ring are
not set to the hammer
drilling symbol.
The forward / reverse
switch is in the middle
position (transport lock
engaged).
Very low ambient tem-
perature.
The retaining lugs on the
battery are dirty.
Remedy
The battery must be
heard to engage with
a double click or, re-
spectively, needs to be
charged.
Remove the battery from
the tool and contact Hilti
Service.
Release the control
switch and press it
again.
Allow the power tool to
cool down.
Clean the ventilation
slots.
Change the battery and
charge the empty bat-
tery.
Bring the battery to the
recommended working
temperature.
Turn the torque and op-
erating mode setting ring
to the hammer drilling
symbol.
Push the forward / re-
verse switch to the left or
right.
Allow the battery to
warm up slowly to room
temperature.
Clean the retaining lugs
and push the battery in
until it engages. Contact
Hilti Service if the prob-
lem persists.
en
15