My leica disto A5 is not measuring more than 2.5 meters , if i measure more thank 2.5 meters it give info 255

It's possible that the main button may be malfunctioning or broken, which is preventing it from activating the laser. Here are a few troubleshooting steps you can try:

1. Ensure that the laser is not obstructed or dirty. Use a soft, dry cloth to wipe the lens clean.
2. Check the battery contacts and make sure they are clean and properly aligned. You can clean the contacts with a cotton swab and rubbing alcohol.
3. Try resetting the device by removing the batteries for a few minutes and then reinserting them.
4. Check the user manual or manufacturer's website for any firmware updates that may address the issue.

If none of these steps work, it may be necessary to send the device in for repairs or contact Leica customer support for further assistance.

Put in new batteries, clean lens, and calibrate. If this does not work, type " Leica Disto A6 Laser Distance Meter user manual " into computer search engine. It will bring up sites for manual.

Put in new batteries and clean lens and calibrate.

I had this exactl problem and resolved it by replacing the batteries

Put in new batteries and clean lens and calibrate if it has that function. If that doesn't work, Type the " Leica Disto A6 Laser Distance Meter user manual" and it will bring up sites to manual.

Press and hold the circle button down, after a few seconds it will flash 'beep on/off', dont stop holding it down, it will then cycle to 'units', press +/- to change between metric and imperial, then press the = button to store. If you keep holding it down you can set the reference pont (where the measurement is taken from, the back, middle or front edge of the machine) add an offset (add take away from the displayed dimension), and you can also reset the machine.

MY LEICA DISTO D5 SCREEN DOES NOT LIGHT UP ALTHOUGH THERE IS LEISER AND READING. HOW DO I RECTIFY THIS.

It depends on the model that you have. I may have some replacement screens for that device, but I need to know the exact model number. (DIsto LIte5, Classic5, Classic5A, and DIsto A5) . Leica does not sell these parts, you just need to find someone that has an old unit like yours that still has a good screen. Contact me with the model number and I can let you know if I have any.

Greg DeTray
Distagage.com

A short rectangular "dot" is normal, a 255 error indicates that you are not getting enough reflection back to the optics. This may be due to the surface you are aiming at. Try placing a piece of white paper over the surface, if it does not measure 30 or 40 meters to a sheet of white paper, indoors, and the optics are clean, I'd contact your dealer to initiate a warranty claim. 3 or 4 meters should not be a problem unless the surface is very rough, such as dirt or sand, or very dark color.
If you just bought the unit from a licensed distributor, you should have at least a two year warranty, possibly 3 years.
Greg DeTray
www.distagage.com

can not measure distance.
each time the button is pressed dist, 279 error appears.