Hilti SF 22-A Manual De Usario página 35

9.1 Troubleshooting
Trouble or fault
The power tool
doesn't run.
The power tool
doesn't work and all
four LEDs blink.
The power tool
doesn't work and
one LED flashes.
The on/off button
can't be pressed, i.e.
the button is locked.
No hammering ac-
tion.
The battery runs
down more quickly
than usual.
The battery doesn't
engage with an audi-
ble double click.
The tool or battery
gets very hot.
*362170*
Possible cause
The battery is not fully
inserted.
The battery is
discharged.
The power tool has been
overloaded briefly.
The overheating cut-out
has been activated.
The battery is
discharged.
The battery is too hot or
too cold.
The forward/reverse
selector switch is in the
middle position.
The operating mode is
not set correctly at the
selector ring.
Very low ambient tem-
perature.
The retaining lugs on the
battery are dirty.
The tool is overloaded
(application limits ex-
ceeded).
362170
Action to be taken
▶ Insert the battery.
→ page 27
▶ Charge the battery.
→ page 27
▶ Release the control
switch and then press
it again.
▶ Allow the power tool
to cool down. Clean
the air vents.
▶ Charge the battery.
→ page 27
▶ Bring the battery to
the recommended op-
erating temperature.
▶ Set the
forward/reverse
switch to the desired
position. → page 28
▶ Set the power tool
to "hammer drilling".
→ page 29
▶ 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
problem persists.
▶ Pay attention to the
power and perfor-
mance rating of the
product before using
it, i.e check its suitabil-
ity for the job on hand.
See the "Technical
data" section.
English 31