Troubleshooting - Hilti SFC 14-A Operating Instructions Manual

– Charge the batteries using the specified and approved Hilti battery
chargers for Li­ion batteries.

8 Troubleshooting

Fault
The power tool does-
n't run.
The power tool does-
n't run and 1 LED
blinks.
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.
LED 1 blinks.
Printed: 20.05.2015 | Doc-Nr: PUB / 5071590 / 000 / 02
Possible cause
The battery is
discharged or is not
pushed all the way in.
Electrical fault.
The battery is
discharged.
The battery is too hot or
too cold.
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.
The battery is
discharged.
The tool is overloaded
(application limits ex-
ceeded).
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.
Change the battery and
charge the empty bat-
tery.
Bring the battery to the
recommended working
temperature.
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.
Charge the battery.
Use the right power tool
for the job (don't use a
low-powered tool for
heavy work).
en
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