Troubleshooting - Hilti NPR 019 IE-A22 Original Operating Instructions

Storage
CAUTION
Inadvertent damage caused by defective battery. A leaking battery may damage the tool.
▶ Always remove the battery before storing the tool.
▶ Store the tool and batteries in a place that is as cool and dry as possible.
▶ Never store batteries in direct sunlight, on heating units or behind a window pane.
▶ Store the tool and batteries in a place where they cannot be accessed by children or unauthorized
persons.
▶ Check the tool and batteries for damage before use after long periods of storage.

8 Troubleshooting

If the trouble you are experiencing is not listed in this table or you are unable to remedy the problem by
yourself, please contact Hilti Service.
8.1 The crimping / pressing tool is not in working order.
Malfunction
The LEDs on the battery indi-
cate nothing.
1 LED on the battery blinks.
4 LEDs on the battery blink.
Red LED => lights continu-
ously and a warning tone is
emitted.
Red LED => blinks at short
intervals and a warning tone
is emitted.
Red LED => lights briefly and
no warning tone is emitted.
8.2 The crimping / pressing tool is in working order.
Trouble or fault
The battery runs down more
quickly than usual.
The battery does not engage
with an audible double click.
Red LED => blinks at long
intervals and a warning tone
is emitted.
Red LED => lights continu-
ously and a warning tone is
emitted.
Printed: 04.08.2017 | Doc-Nr: PUB / 5367417 / 000 / 00
Possible cause
The battery is not correctly in-
serted.
The battery is discharged.
The battery is too hot or too cold.
The battery is discharged.
The battery is too hot or too cold.
The crimping / pressing tool has
been briefly overloaded.
Technical problem.
The state of charge of the battery
is too low to allow a complete op-
erating cycle.
The tool has overheated.
Possible cause
Very low ambient temperature.
The retaining lugs on the battery
are dirty.
Crimping / pressing pressure not
achieved (tool was used incor-
rectly).
Technical problem.
Action to be taken
▶ Push the battery in until it
engages with a double click.
▶ Change the battery and charge
the empty battery.
▶ Allow the battery to cool
down or to warm up to room
temperature.
▶ Change the battery and charge
the empty battery.
▶ Allow the battery to cool
down or to warm up to room
temperature.
▶ Allow the tool to cool down.
▶ Incorrect operation is possible!
Contact Hilti Service.
▶ Change the battery and charge
the empty battery.
▶ Allow the tool to cool down.
Action to be taken
▶ Allow the battery to warm up
slowly to room temperature.
▶ Clean the retaining lugs and refit
the battery.
▶ Make sure that the tool is
used correctly and check the
crimping / pressing if unsure.
▶ Incorrect operation is possible!
Contact Hilti Service.
English 17