©2018 Johnson Level & Tool
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Symptom
Backlight turns off too
quickly
Possible Cause
Backlight timer too
short
Solution
Adjust backlight timer
Backlight doesn’t turn
off
Backlight timer too long
Adjust backlight timer
Display inconsistent
Unit out of calibration
Calibrate unit
Display not changing
with movement
Hold feature is engaged
Press hold button to
return to normal
operation
Numbers inverted
Hold feature active
Press hold button to
return to normal
operation
Incorrect unit displayed
Wrong unit selected
Press unit button to
change displayed unit
2842i_Manuals 4/27/18 2:09 PM Page 19