Fix Fault Citadel

Citadel XR2 Intruder Alarm. My alarm occasionally makes a low level croaking sound from the external wall mounted unit. It happens for about 20 mins then stops then is OK for about a week or more. ... more

The alarm goes off at random. The red “tamper” light is now on and stays on even when the code is input. Any suggestions? Citadel VR8

had a very short power cut that set alarm off stopped the alarm but blue light still flashing how do i stop the flashing

I have the above alarm system stored in my property, about a couple of months ago we had thunder and lightning which normally triggers the alarm but on this occasion it did not. On lifting the cover t ... more