English–7
1 609 929 C66 • (02.07) T
Before each use, check the unit. For visible damage or loose
parts in the interior of the unit, reliable functioning is no longer
ensured.
Always keep the unit clean and dry.
Wipe off dirt with a damp soft cloth. Do not use aggressive cleaning
agents or solvents. Wipe dry before renewed usage.
Replacing Wheels
Replace defective or heavily worn wheels. For this purpose, loosen the
screw
1
with a Torx screwdriver (size 6), replace the wheel
2
and firmly
retighten the screw
1
.
If the unit should fail despite the care taken in manufacture and testing,
repair should be carried out by an authorised customer services agent
for Bosch power tools.
For all correspondence and spare parts orders, always include the 10-
digit order number of the unit.
In case of repair, send in the unit in the protective bag
14
.
Error – Cause and Correction
Error/Indication
Cause
Correction
The unit can not be
switched on.
Batteries are empty.
Insert new batteries.
Batteries have been
inserted with the
wrong polarity.
Check the batteries
for correct position.
The unit is switched
on but no longer react
to inputs.
Remove and reinsert
the batteries.
The display is dark.
The unit is too hot,
e.g. subjected to di-
rect sunlight.
Wait until the allowa-
ble temperature range
is reached.
The unit was moved
too fast.
Press
“start”
button
6
. Move the unit more
slowly over the wall.
The unit was not
moved over the wall in
a straight line or the in-
dividual wheels had
no contact with the
wall.
Press
“start”
button
6
. Move the unit again
over the wall in a
straight line while
taking care that all
wheels are in contact
with the wall.
External influences
such as mobile
phones, microwave
equipment or mobile
communication masts
are interfering with the
measurement.
Switch off interference
when possible. Begin
a new measurement
by pressing the
“start”
button
6
.
The temperature is
too low.
Wait until the allowa-
ble temperature range
is reached.
The temperature is
too high.
Wait until the allowa-
ble temperature range
is reached.
Maintenance and Cleaning
