Home Alarm Systems?

it sounds like the stand by battery has given up the ghost,or a fuse has blown in the panel,or both,turn power off,is the panel lights still lit?open panel,check the small glass fuses,replace any blown one,it is not enough just to look at them,you must check them with a test meter,or replace with new ones,and its a good idea to replace the battery if the system is 5 years old,or older,

gts
September 2010