©2017 Johnson Level & Tool
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11. Troubleshooting Guide
This section is designed to help you diagnose and troubleshoot
common problems that prevent the Laser Distance Meter from
working properly.
If the Laser Distance Meter returns an ERR code (display shows ERR
plus a number from 1 to 6), please
refer to Section 4
of this manual
for possible resolutions. If your Laser Distance Meter fails to operate
in any other way, please refer to the following troubleshooting guide
for some suggestions on how to diagnose the problem.
Symptom
Will not turn on
Possible Cause
Batteries missing or
depleted
Polarity reversed
Solution
Change the batteries
Check battery polarity
Turns off after a short
time
Batteries depleted
Change the batteries
Measurement seems
incorrect
Incorrect reference used
Angle sensor requires
calibration
Set the reference
position to the front rear
edge of the tool, as
appropriate
Calibrate the angle
sensor (refer to the
Calibrating the Angle
Sensor section of this
manual)
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