Hilti VC 20-U-Y Bedienungsanleitung Seite 43

Trouble or fault
Dust is blown out of the appli-
ance.
The appliance doesn't start or
switches itself off after a short
time.
The motor doesn't restart.
The appliance switches on
and off inadvertently.
Static electricity is discharged
through the user.
The motor doesn't run when
set to "AUTO".
The automatic filter element
cleaning system doesn't
work.
9.2 Troubleshooting for battery-specific problems during vacuum cleaner operation
Trouble or fault
The charger status LED
blinks.
The appliance doesn't work –
no LED lights.
The battery runs down more
quickly than usual.
The battery is not recognized
(no LED indicator).
The appliance doesn't work –
LED on the charger blinks.
The battery doesn't engage
with an audible click.
The vacuum cleaner does-
n't switch over to the fully
charged battery.
*2055199*
Possible cause
The filter element is damaged.
The filter seal is damaged.
Dust deposits on the sealing sur-
faces of the container and top sec-
tion.
The container level monitoring sys-
tem has been triggered.
The mains circuit breaker has been
tripped.
The waste material container is full. ▶ Switch the appliance off and
Electrostatic charge is not
conducted away – the
appliance is connected to an
unearthed/ungrounded power
outlet.
Electrostatic charge is not
conducted away – the
appliance is connected to an
unearthed/ungrounded power
outlet.
The appliance is faulty or is not
correctly plugged in.
No suction hose is connected.
APFC switch (LED) is off.
Possible cause
The battery is too hot or too cold.
Wrong type of battery used.
The status of the battery is not
optimal.
The battery was changed too
quickly.
The overheating cut-out has been
activated.
The retaining lugs on the battery
are dirty.
No contact.
2055199
Action to be taken
▶ Fit a new filter element.
▶ Fit a new filter element.
▶ Clean the sealing surface with a
cloth.
▶ Clean the sensors and the
area around the sensors with a
brush.
▶ Empty the waste material
container.
▶ Reset the circuit breaker.
▶ Find the reason for the overload
current if the circuit breaker
trips again.
empty the waste material
container.
▶ Use an electrically conductive
suction hose.
▶ Connect the appliance to an
earthed/grounded power outlet
and use an antistatic suction
hose.
▶ Connect the appliance to an
earthed/grounded power outlet
and use an antistatic suction
hose.
▶ Make sure that the supply
cord plug is fully plugged in
and check that the appliance
functions correctly.
▶ Connect the suction hose.
▶ Press the APFD switch.
Action to be taken
▶ Allow the battery to warm up
slowly to room temperature.
▶ Fit the correct type of battery.
▶ Replace the battery.
▶ Remove the battery and then
reinsert it.
▶ Allow the appliance to cool
down.
▶ Clean the retaining lugs and
engage the battery in the
working position.
▶ Remove the battery and then
reinsert it.
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