i removed 3 pirs to redecorate and after the alarms went off i put in the code. i also changed the bell box as the bell was muffled. when i went to set the system zones 2-7 lights come on and it beeps 8 times. it wont let me set. i also notice 3 of the pirs does show the red led when i walk past them. i have 8 zones 1 of which is a panic. please help urgent