Hilti VC 20-UM Original Bedienungsanleitung Seite 28

▶ Use the tapered adapter to connect both ends of the hose together conveniently for transport.
8.2 Storage
▶ Store the vacuum cleaner in a secure, dry place where it is inaccessible to unauthorized users.
9 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.
9.1 Troubleshooting
Trouble or fault
The warning tone is acti-
vated (reduced suction per-
formance).
Dust is blown out of the appli-
ance.
The appliance switches itself
off or on inadvertently or the
user receives electric shocks
(static discharge).
The appliance doesn't start or
switches itself off after a short
time.
The motor doesn't restart.
The motor doesn't run when
set to "AUTO".
The automatic filter element
cleaning system doesn't
work.
24 English
Possible cause
The dust bag is full.
The filter element is clogged with
dirt or dust.
The hose, vacuum cleaner or dust
hood is clogged with dust.
The hose diameter setting is incor-
rect.
The filter element is not fitted cor-
rectly.
The filter element is damaged.
The filter seal is damaged.
Electrostatic charge is not
dissipated correctly; The
appliance is connected to an
unearthed/ungrounded power
outlet.
The water level cut-out is acti-
vated.
The mains circuit breaker has been
tripped.
The container is full.
The motor overheating protection
cut-out has been activated.
The motor overheating protection
cut-out switches the motor off re-
peatedly because the air vents are
clogged.
The electric tool is faulty or is not
plugged in fully.
No suction hose is connected.
Action to be taken
▶ Change the dust bag.
▶ Change the filter element.
▶ Clean the hose and dust hood.
▶ Set the correct hose diameter.
▶ Remove the filter element and
refit it correctly.
▶ Fit a new filter element.
▶ Fit a new filter element.
▶ Connect the appliance to an
earthed/grounded power outlet
and use an antistatic hose.
▶ Clean the probe and the area
around the probe with a brush.
▶ Reset the circuit breaker. Find
the reason for the overload
current if it trips again.
▶ Switch the appliance off and
empty the waste material
container.
▶ Switch off the appliance and
allow it to cool for 5 minutes.
▶ Contact Hilti Service if the motor
cannot be restarted.
▶ Clean the ventilation slots
carefully with a dry brush.
▶ Check the electric tool for
correct operation and plug it in
fully.
▶ Connect the suction hose.
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