Hello. SIEMENS 2100 controller switched itself to Something that looks like German over the weekend. It also will go blank after about 20 minutes. I had no battery alarm. Still even if it went bad why would it switch language lol. I cant read it to fix anything . Tech support wants $300 to talk to me because it's a older system. Is it more serious. A board go bad. I could use a good source for help if it's more serious. Someone that can come look at it. In Paxton Nebraska. Thanks for the help.