©2016 Johnson Level & Tool - Rev. 3
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13. Troubleshooting
• If level will not turn on, check the battery polarity or clean the
battery terminals and install new, name brand, alkaline batteries.
• If laser will not turn off, press and hold the power button for
several seconds until the unit turns off.
• If laser does not illuminate, check the battery polarity or install
new, name brand, alkaline batteries and a new 3V button battery
(CR2032) and clean the battery terminals.
• If error code, “Erro” appears, install a new 3V button battery
(CR2032).
• If laser is out of calibration or numbers are inverted, confirm that
the unit is not in “hold” mode. If arrows are blinking on each side
of the digital readout, press the “hold” function before attempting
calibration. Follow the calibration procedure in the user manual.
• If laser will not calibrate, follow the calibration procedure in the
user manual – rotate the level 180˚, do NOT flip it upside down.
• If the laser turns off after a short time, clean the battery terminals
and install new, name brand, alkaline batteries.
• If the unit will not calibrate, contact an authorized Johnson service
center or Johnson Level & Tool’s Customer Service Department.
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