Malfunction
The filter bag holder
is pulled up when
the top section of
the appliance is
lifted
No water or too little
water flows although
there is adequate
water in the con-
tainer.
No suction or re-
duced suction per-
formance.
The flow indicator
sight glass is dirty.
The appliance does-
n't start in REC or
VAC mode.
Another diamond
core drilling machine
has automatically
connected to the ac-
cessory used (e.g.
water treatment sys-
tem) via Bluetooth.
The WMS 100 was
not found by the
diamond core drilling
machine.
10
Disposal
Most of the materials from which Hilti tools and appliances are manu-
factured can be recycled. The materials must be correctly separated before
they can be recycled. In many countries, your old tools, machines or appli-
ances can be returned to Hilti for recycling. Ask Hilti Service or your Hilti
representative for further information.
16
English
Possible cause
Internal water connector
parts are dry and/or
clogged.
The prefilter is blocked.
The water hose connec-
tor nipple is blocked.
The mesh filter on the
drilling machine water
connection is clogged.
The filter bag is clogged. ▶ Change the filter bag.
Dirt deposits.
The float is stuck.
Several diamond core
drilling machines are
connected to the same
accessory. The acces-
sory always connects
automatically to the di-
amond core drilling ma-
chine that enables the
connection to be estab-
lished fastest.
Bluetooth is deactivated. ▶ Activate the Bluetooth
Action to be taken
▶ Check the seal on
the filter support.
→ page 14
▶ Check the prefilter.
→ page 14
▶ Use a pin to clear the
hole in the nipple.
▶ Clean the mesh filter
with a brush.
▶ Unscrew the flow
indicator and clean it.
▶ Check the float level.
→ page 14
▶ Switch Bluetooth on
the accessory off and
then on again and
connect the diamond
core drilling machine
to the accessory
again.
function on the tools
to be paired. → page 9
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