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Laser Level Repair:




How to fix your laser level problems:

The following information lists simple procedures that can be carried out to check the laser if you are experiencing problems.


First up is to check your batteries. One of the most common causes of performance failures is due to defective or incorrectly installed batteries. Check to see if any batteries are installed backwards and correct if necessary. Old batteries may have corroded the battery terminals in the battery compartment.


Never selectively replace batteries: Always replace all the batteries with new batteries. If in doubt, confirm proper voltage with a voltmeter.


Check to see that the battery assembly is locked in the base of the laser. Since batteries with the correct voltage may vary in size, check that any replacements are identical to those removed.


Throwaway Alkaline batteries give the best performance and storage life. Rechargeable batteries such as Ni-Cd or Ni-MH will save on battery costs, but do not last as long. Low cost standard Carbon-Zinc Heavy Duty batteries may be used in emergencies, but should be replaced with alkaline batteries as soon as available.


Rechargeable batteries: to maximise battery life, do not keep on topping up; allow to fully discharge and then charge fully. Having a spare set of Alkaline batteries in the case provides backup so little time is lost if the rechargeable battery dies when the laser is being used.


Unit does not rotate or self-level, or produces an “error” message: reset the internal processor by turning power off and on again. You may also try removing the battery pack for 5 seconds to let the capacitor discharge, then replace and try again.


If the unit rotates but does not self-level, be sure that Auto Level Mode is turn on. If troubleshooting is not effective, please contact your supplier or authorised service centre for assistance.


Out of calibration: it is helpful if you have set up a calibration range consisting of a fixed support and permanent mark 15-30m away that has been verified with another instrument. This makes it very easy to check and if necessary recalibrate according to the dimensions in the manual. Remember that both the X and Y axis have to be checked.


Before sending the laser off for repair, there are some simple steps that you should carry out.


Power is the first. If it is using standard alkaline batteries, try some new ones (sometimes even new batteries can be faulty so best to check a couple of sets to make sure). If it’s using rechargeable batteries try some alkaline ones (if the laser has this feature) or plug into the 240v adaptor/charger to see if it will work then.


“When in doubt read the directions”. Many manufacturers include a troubleshooting guide in the manual which may be of assistance.


Next step is to identify whether it is the laser transmitter or the receiver that is not working properly. Since nearly all rotating laser receivers will work with all rotating lasers, the easy way is to try another hand held detector that you know is working or vice versa. With an infrared or invisible laser, you can normally tell it is emitting a beam by bobbing your eye up and down and you should see a fine red line. Since not everyone’s eyesight enables them to see the red line, check it out when you first operate the laser and its working correctly.


At this stage you should contact the laser supplier or their authorised service centre for advice. Hopefully they may be able to solve the problem without the need to send the unit itself back.


Many lasers are returned when the problem could easily be solved over the phone, thus saving days of being without your prized possession. Finally it may be necessary to return the unit for repair or replacement in which case it is best to find the whole assembly including chargers and detectors with a note describing the problem encountered and any checks you have made.