Frustrated, can be great when working
when I first had the machine, it worked brilliantly. Then had firmware update. The Wi-fi unit would cause a F8 error. I had the machine replaced. Again worked great. Then now get F8 error. So haven't used. The machine is kept clean, so don't understand. When works does a very good job. Also need to plan clean, get everything out of the way. Could do with more possibilities for maps to be saved - there is only 2 options.