Hilti VC 20M-X Manual Del Usuario página 38

Malfunction
VC 20M-X
VC 40M-X
Acoustic warning (reduced
suction power)
Dust is blown out of the appli-
ance.
The appliance switches it-
self off or on inadvertently or
static electricity discharges
through the user.
The motor doesn't restart.
The motor doesn't run when
set to "AUTO".
The automatic filter element
cleaning system doesn't
work.
10.2 Malfunction, system device
If the vacuum cleaner is used in a wireless system, connected system devices can output the following
messages on their displays.
Malfunction
The Unknown error service
indicator lights up.
32 English
Possible cause
The dust bag is full.
The filter element is clogged with
dirt or dust.
The suction hose or dust hood on
the electric tool is blocked.
The hose diameter setting is incor-
rect.
The filter element is not fitted cor-
rectly.
The filter element is damaged.
Electrostatic charge is not
conducted away – the
appliance is connected to an
unearthed/ungrounded power
outlet.
The mains circuit breaker has been
tripped.
The waste material container is full. ▶ Switch the appliance off and
The motor overheating protection
cut-out has been activated.
The motor is repeatedly switched
off by its thermal cut-out.
The appliance is faulty or is not
correctly plugged in.
No suction hose is connected.
Possible cause
The connected system device has
received an unknown error code
from the vacuum cleaner.
Action to be taken
▶ Change the dust bag.
▶ If the automatic filter cleaning
system is deactivated, activate
it and allow the vacuum cleaner
to run for 30 seconds.
▶ Clean the suction hose and the
dust hood.
▶ Set the hose diameter
→ page 28.
Correctly re-install the filter
▶
element. → page 30
▶ Install a new filter element.
→ page 30
▶ Connect the appliance to an
earthed/grounded power outlet
and use an anti-static suction
hose.
▶ Reset the circuit breaker.
▶ Find the reason for the overload
current if the circuit breaker
trips again.
empty the waste material
container.
▶ Switch the appliance off and
allow it to cool down for about
5 minutes.
▶ If the motor doesn't start, return
the appliance to Hilti Service.
▶ Clean the air vents carefully
using a dry brush.
▶ Make sure that the supply
cord plug is fully plugged in
and check that the appliance
functions correctly.
▶ Connect the suction hose.
Action to be taken
▶ Check the vacuum cleaner for
malfunctions.
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