Hi. This is my first post so pls apologies if i have something which is already been answered.
I had Honeywell Accenta G4 installed about 2.5 yrs ago. Was working absolutely fine until last night when it decided to start siren externall syren. Usually when this happens it triggers a call but it not doing that. To turn the syren silent, i had to turn off the main panel from mains and take the backup battrry out which was installed with the system about 2.5 years ago. If I now turn the main panel on from mains without the battery connected, it still starts external siren without initiating call. Do i need to replace the battery ? Is this the normal behaviour when its time to replace the battery.
Any assistance is much appreciated