Troubleshooting - DeWalt DW089 Instruction Manual

FIG. 8B
18'
(5 M)
33' (10 M)
FIG. 8C
18'
(5 M)
33' (10 M)

Troubleshooting

THE LASER DOES NOT TURN ON
• Make sure batteries are installed according to (+) and (–) on the
inside of the battery door.
• Make sure the batteries are in proper working condition. If in
doubt, try installing new batteries.
• Make sure that the battery contacts are clean and free of rust
or corrosion. Be sure to keep the laser level dry and use only
new, high-quality, name brand batteries to reduce the chance of
battery leakage.
• If the laser unit is heated above 50 °C (120 °F), the unit will not
turn on. If the laser has been stored in extremely hot temperatures,
allow it to cool. The laser level will not be damaged by pressing the
on/off button before cooling to its proper operating temperature.
THE LASER BEAMS FLASH
The DW089 is designed to self-level up to an average of 4° in all
directions when positioned as shown in figure 2. If the laser is tilted
so much that the internal mechanism cannot level itself, it will flash
the laser beams – the tilt range has been exceeded. THE FLASHING
BEAMS CREATED BY THE LASER ARE NOT LEVEL OR PLUMB
AND SHOULD NOT BE USED FOR DETERMINING OR MARKING
LEVEL OR PLUMB. Try repositioning the laser on a more level surface.
THE LASER BEAMS WILL NOT STOP MOVING
The DW089 is a precision instrument. Therefore, if the laser is not
positioned on a stable (and motionless) surface, the laser will continue
to try to find level. If the beam will not stop moving, try placing the
laser on a more stable surface. Also, try to make sure that the surface
is relatively flat, so that the laser is stable.
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