Can anyone help with this one? Alarm has decided it will not arm anymore. On activation i get a constant LED on all active zone indicators with a double warning beep & system will not arm. On system test (walktest) All LED indicators light (on panel) and remain on until test cancelled, again with warning tone. All three PIRs also show no power at sensor i.e. they have stopped flashing red. Been into control panel, power supply is good and all fuses check out. Had to move a cable recently when laying new upstairs floor, unclipping & reclipping, no disconnection. Thinking i may have damaged this i have stripped the whole cable length back and examined for a break but nothing. Could damaging one cable cause all sensors to fail? Can't see it being a triple sensor fault, even i'm not that unlucky. Not sure where cable terminates either as it appeared & disappeared from under 1st floor floorboards & now has my nice new laminate floor on top also! Anything i can do to confirm fault without ripping up the floor or paying £50 call out charge?