Troubleshooting - DeWalt DW040 Original Instructions Manual

EN G LI S H

Troubleshooting

If measurement conditions do not permit an accurate measurement,
an error code will appear on the LCD display. For an error code
description refer to the following table.
Code Description
204 Calculation error
252 LDM too hot
253 LDM too cold
255 Weak signal
256 Incorrect reading
257 Too much
background light
258 Outside of range
260 Laser beam interrupted
294 Display overflow
Cleaning
WARNING:
• Remove the batteries before cleaning your laser unit.
• Never use solvents or other harsh chemicals for
cleaning the non-metallic parts of the laser. Use a cloth
dampened only with water and mild soap.
• Never let any liquid get inside the unit; never immerse
any part of the unit into a liquid.
52
Correction
Repeat the measurement
Let the LDM cool down
Warm the LDM up
Change the target surface (e.g.,
put white paper on glass door)
Change the target surface (e.g.,
put white paper on glass door)
Shadow the target area
Stay within the working range
Repeat the measurement
Switch to metric units and
repeat the measurement