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Bosch Power Tools
Troubleshooting – Causes and Corrective Measures
Cause
Corrective Measure
Signal LED 2 does not illuminate
.
Measuring tool is not
switched on
Switch the measuring tool on.
Measuring tool has
switched itself off
Switch the measuring tool off and then on again.
Batteries have not
been inserted or been
inserted incorrectly
Insert batteries. Pay attention to the polarity.
Flat or rechargeable
batteries inserted
Replace batteries. Do not use rechargeable
batteries.
Signal LED 2 illuminates yellow or red, even though no metal is
located within the vicinity
(warning of metal objects).
Ambient temperature
is too high/too low
Only use the measuring tool within the specific
temperature range of 0 °C–40 °C.
Severe temperature
change
Wait until the measuring tool acclimates to the
ambient temperature.
Auto calibration not
successful
Perform a manual calibration.
Signal LED 2 lights yellow or red over large measuring area on the
wall
(warning of metal objects).
Many, closely spaced
metal objects
Pay attention to the pitch of the signal sound to
differentiate between individual metal objects.
Metal objects that are too closely spaced, cannot
be detected separately.*
Building materials
containing metal or
reinforcing steel in the
concrete
A reliable detection is not possible with metallic
building materials (e.g. foil-laminated insulation
materials, heat sinks).*
Solid metal objects on
the back of the wall
Detection will not be accurate in the presence of
solid metal objects (e.g. radiators).*
Auto calibration not
successful
Perform a manual calibration.
* Therefore, please also observe other information sources (e.g. construction plans)
before drilling, sawing or routing into walls, ceilings or floors.
OBJ_BUCH-1913-003.book Page 24 Tuesday, July 7, 2015 10:09 AM