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| English
Errors – causes and corrective measures
Cause
Remedy
Temperature warning symbol (thermometer) is shown on the display, operation is
not possible
Measuring tool is outside of the operating
temperature range of -10 °C to +40 °C.
Wait until the measuring tool has reached
operating temperature
Battery indicator decreasing
The battery voltage is weakening (measur-
ing is still possible).
Change the batteries or battery pack
Battery indicator empty, measurement not possible
Battery voltage too low
Change the batteries or battery pack
Error indicator and "−−−−" shown on the display
Angle between laser beam and target is too
acute.
Increase the angle between the laser beam
and the target
Target surface is too reflective (e.g. mirror)
or not reflective enough (e.g. black mater-
ial), or ambient light is too bright.
Use the laser target plate
(16)
(accessory)
The laser beam output
(13)
and/or recep-
tion lens
(12)
are fogged up (e.g. due to a
rapid temperature change).
Dry the laser beam output
(13)
and/or re-
ception lens
(12)
with a soft cloth
Calculated value is larger than 999,999 or
smaller than –999,999 m
2
/m
3
.
Divide the calculation into intermediate
steps
Measuring result is unreliable
Target surface reflection not distinct (e.g.
water, glass).
Cover the target surface
Laser beam output
(13)
and/or reception
lens
(12)
are covered.
Keep the laser beam output
(13)
and/or re-
ception lens
(12)
clear
Measurement result implausible
An incorrect reference level has been set
Select a reference level that is appropriate
for the measurement
Obstruction in the path of the laser beam
The laser point must be fully on the target
surface.
1 609 92A 7LM | (29.04.2022)
Bosch Power Tools
