Recent content by Dan Carron

ps Thanks to both correspondents for engaging in this, helpful to me and may also help folks in the future (not that this issue has been fully bottomed out yet).

No, haven't taken a reading in that set-up, but agree it's a good idea to do it. The 13.65Volts (see original post) measured with the battery in-circuit indicates it's very likely that it is/was being charged, so presumably the 1A QB fuse (which I assume was blown when this all started) only...

Don't think there's an in-line fuse holder, the fuse which blew was on the pcb (two fuses side by side, the RH one as viewed from the front). Will check for an in-line holder when I'm next at my friend's house. It'd be interesting to have a look at the circuit diagram of this system, but I guess...

Battery was replaced in 2020, agree there must be a cause for a blown fuse hence the plan to keep an eye on the system for a week. My friend has got a new battery so we'll put that in at some stage, but IMO changing one thing at a time is usually the best approach to fault finding in any system.

Update: We didn't get as far as changing the battery. Thought I'd check the fuses on the pcb and whilst both looked in-tact a pd check across them revealed the 1Amp Quick-Blow fuse had blown. Removed the (old) battery, changed the fuse, reinstalled the old battery and the LOW BATT alarm cleared...

ps The user guide and installation guide are both CP8-L documents so I'm presuming that's what it is.

Thanks to both respondents. I'll replace the battery - should I disconnect the mains supply first or is it ok to do it with the panel powered up? Regarding the DVM check - this was done with the battery in-situ and connected to the panel, ie either being charged (mains on) and supplying current...

A friend has a CP8L Eurosec alarm system, installed several years ago. The sensors, a mix of contact and PIR, are all wired, ie no batteries. The main panel has a Yuasa 12V 3.2Ah backup battery. The keypad unit is showing a LOW BATT alarm message which prevents the system from being set...