12. Trouble Shooting
Symptom
Laser will not turn on
Laser turns off after a
short time
Laser will not spin
Laser is not accurately
reading level
Laser light appears dim
Beam is difficult to
detect with laser
detector
©2023 Johnson Level & Tool
Possible Cause
Batteries missing or
depleted
Batteries depleted
Batteries depleted
Laser is beyond
leveling range
Laser is out of
calibration MORE
THAN 1/16" at 50'
Batteries are weak
Improper battery type
Speed too high
(indoor)
Ambient temperature
too high/low
Speed too low
Solution
Change the batteries
Change or charge the
batteries, or connect to
a power source
Change or charge the
batteries, or connect to
a power source
Place on surface within
5° of level
Perform accuracy
check on rotary laser
(section 7) or return
to Johnson dealer for
calibration
Return to Johnson
dealer for service
Change or charge the
batteries, or connect to
a power source
Ensure high quality
Alkaline batteries are
used
For indoor operation,
operate on lowest
speed to produce the
most visible beam
Ensure temperature
is within operating
range listed under
specifications
Turn laser RPM to a
higher speed
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