Cause
Measuring tool not within the
operating temperature range
between +14°F and 113°F
(–10°C and +45°C)
The tool will shut down
automatically and user needs
to replace batteries.
Battery indicator (a) is empty and flashing : 15 min left
Battery voltage too low
In case of a fatal error an exclamation mark within
an octagon is shown and the tool switches off
automatically
The measuring tool is defective.
160992A6EZ GLM100-23 202210.indd 19
Troubleshooting
Temperature warning indicator,
tool switches off automatically
Battery Low warning appears
big on screen
-19-
Corrective Measure
Wait until the
measuring tool
has reached
the operating
temperature
Replace batteries
Replace batteries
Contact the
Customer Service
10/4/22 10:19 AM