your alarm has a global tamper,if you cant find the fault,you can short the tamper out inside the panel,ur alarm will then reset,not the ideal solution as you wont have any tamper protection,i e if you remove any cover of a pir the alarm will not go off.to find the tamper fault,open the panel,you will find a bunch of wires connected together terminating to the global tamper terminal,use a test meter on ohms scale,test each tamper loop,the one that is o/c ,is the faulty one hope this is of help
gts
November 2012