mrala

Job done!! Minimum noise. Thanks to all who commented. Mrala

This is the unit in question. Mrala

Yes, it is an LED one. Also I assume by high voltage you mean mains 220V A/C? The only cable going to the SABB is small bell wire size. Research did say that some very old SABB units did have a mains supply. Mrala

Thank you for all those various comments. Looks like the best procedure for me is to power off the control panel. Then remove the screws holding the cover on the SABB unit, while holding the cover in place. Then remove the cover and very quickly pull the cable connector from the battery to the pcb. Or maybe just snip the wires to the siren. Minimum squawk from the siren!! Research on the SABB unit confirms that there is no high voltage present - just a small lithium battery. Mrala.

Thank you Peter James. My typo - external box is SABB!! If I do get up on the ladder to the box and take the cover off, will it alarm if the panel is in service mode? The SABB manual shows it has a tamper switch. Mrala

Thanks for your interest. No, I don't want it fixed. And I don't have the knowledge to even attempt it. The wiring to the various sensors is in really poor state and ugly. Several of the tamper contacts are shorted out. I just want rid of the lot. I am hoping to get a wireless system installed in the future. Yes, I am conscious that I shouldn't ask here about disabling an alarm system, nor indeed expect advice on how to so do. But I had hoped that a total removal would be OK to ask about. I could just power it off and rip out all the wiring. But that would I assume trigger the external alarm and annoy the neighbours for as long as the battery lasts. Or until I get a ladder and open the external box. Still hoping for some advice. Mrala.

The house I live in has an old alarm system installed. Some years ago it started to produce false alarms and since then I have never enabled it. It just sits there unused. The external SAAB panel has a flashing blue light. I do have the code to enable the system and also the code to put it into service mode. I want to remove the whole system from my house. I am afraid that if I just cut all the wires, the external alarm will sound. I understand it has a battery so will sound even if the power is removed from the control panel. Also, the SAAB leaflet talks about 220 volts in the panel area (not sure how 220v gets there but it makes me wary). I would appreciate advice on how to go about removing the whole system without sounding the external alarm. For example, if the system is in service mode, will the SAAB sound if I remove its cover and disconnect the battery? Or if I turn off mains power to the control panel, will the SAAB still alarm if I remove its cover. The few manuals I have say the system is HKC. I understand electrics OK but not alarm panels. Help please.

Thanks to all for those helpful comments. Much appreciated. The muppet is the wiser!! Mrala

I need to extend the cable connected to the external alarm bell. If I enter the engineer code, can I then extend the cable without fear of the alarms being activated? Mrala