"ERROR" in the Display
"ERROR" indicator in the display
Cause: Addition/subtraction of measured values with different units of measurement
Corrective measure: Add/subtract only measured values with the same units of measurement
Cause: Angle between laser beam and target is too sharp
Corrective measure: Increase the angle between the laser beam and target
Cause: Target surface is reflecting too strongly (e.g. mirror) or too weakly (e.g. black material), or ambient light is too strong
Corrective measure: Use a laser target plate (accessory)
Cause: Laser beam output (21) or reception lens (20) is fogged up (e.g. due to rapid temperature change)
Corrective measure: Rub the laser beam output (21) or the reception lens (20) dry with a soft cloth
Cause: Calculated value is larger than 1 999 999 or smaller than -999 999 m/m²/m³
Corrective measure: Split the calculation into intermediate steps
GLM 150-27 C
Battery charging warning on the display
Cause: Battery charging voltage not correct
Corrective measure: Check whether the plug is correctly made and the charger is functioning properly. If the battery charging warning is still being displayed, the rechargeable battery is defective and must be replaced by the Bosch after-sales service
Battery temperature warning on the display
Cause: Temperature of the measuring tool outside the permitted charging temperature range
Corrective measure: Wait until the charging temperature range has been reached