Does the control panel fully operate correctly?
No? Then check panel AC/DC supply for faults.

What is the control panel made of?
If metal, fit an ACT 211 control panel suppression kit but if plastic, fit an ACT 1313 spike suppressor and ACT 2323 mainspike suppressor.

Are there any remote PSUs?
If so, fit an ACT 1313 spike suppressor and ACT 2323 mainspike suppressor.

Have standby batteries been tested?
No? Then test with a GOLD-IBT Intelligent Battery Tester or replace batteries.

Do false alarms occur when switched off?
Yes? Check for contact faults. Fit an ACT 120L transistorized relay to the troublesome panel contact circuit.

Do false alarms occur on door contact zones?
If so, check for contact faults. Fit an ACT 120L transistorized relay to the troublesome panel contact circuit.

Do false alarms occur on PIR/dual detector zones?
Yes? Check voltage at each detector is stable and above 13VDC. Fit an ACT 1313 spike suppressor.

Do false alarms occur on specific PIR/dual detector zones?
If so, fit an ACT 1376 PIR stabiliser inside the troublesome PIR but if not, check voltage at each detector is stable and above 13VDC. Fit an ACT 1313 spike suppressor.

Do false alarms occur on window or door shock sensors?
Yes? Then check sensitivity. Fit an ACT 3010 ferrite tube over each wire at the troublesome shock sensor.

Does the control panel crash or lock out?
If so, check the AC supply, Earth and standby battery for faults. Fit an ACT 2323 mainspike suppressor.