The laser will not operate, there is no obvious damage
- If the low battery indicator is on, or you suspect the batteries may be dead, replace the batteries.
- Check the battery contacts to be sure that they are clean.
The receiver shows an on-grade at two different heights
- Check the jobsite for windows or mirrored surfaces that might be reflecting the laser and causing the other reading.
- Check for others on the site using a rotary laser.
The laser was knocked over
- Visually check the optics for damage.
- Inspect the laser for any other physical damage.
- Check to see that the laser is putting out a beam.
- Turn the laser rotation on and check for unusual noise or vibration.
- Check the calibration and adjust as needed.
- Check to see that the laser displays the "limit" light when the circular level vial bubble moves approximately half way outside the circle.
The laser only works at short distances
- Check the output window on the rotating head of the laser for heavy dust or moisture. Remove dust with a camera brush or blow off gently with clean compressed air. Allow moisture to dry.
The receiver does not indicate "on grade" at long distance
- Be sure you have not exceeded 500ft (150m) from the laser.
- Check the output window on the rotating head of the laser for dust or moisture. Remove dust with a camera brush or blow off gently with clean compressed air. Allow moisture to dry.
The laser shuts off after running for only a few minutes
- If the yellow out of level indicator is flashing, re-center the circular vial.
- If the red low battery indicator is flashing, replace or recharge the batteries.
- If there is no indication at all, check for dead batteries.
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