If you are not an installer, then the installing company will of changed the engineer code
if that is the case then I would suggest getting a installation company out to default and add the keypad for you
As above, I would use a 12v dc relay personally and power it from a little 12v independent psu (as it’s an NVR you probably won’t have a 12vdc PSU powering any cameras as everything will likely be Poe)
Hi, first point to note the battery (if checked and maintained) should last more than a few hours without mains power to the control panel
If you have fully drained the battery then when you have switched the power back on to the unit it may of blown the quick blow fuse (next to the transformer) I think this is 125ma (but it does say on the label) l
if you are electrically competent & know what you are doing you could check this First
if not call the experts
Likely the keypad but suggest you get the system fully checked over by a qualified alarm engineer, if it’s been unchecked for a number of years you can have a number of potential issues
Best to call In an alarm engineer to check your system over
its highly likely there is a major issue with your alarm, even if you did manage to get the keypad working you still would not know if everything was functioning correctly.
I appreciate it’s an expense but better this than find out the hard way and it not work if you get broken into
If it’s an old system it could of possibly been damaged by the failure to change the 20 year old battery when needed ...! (although this usually damages the charging circuit)
As previous suggestions, either upgrade or get it checked over by a security installer,
just think if you DIY it & you don’t configure something correctly or it fails to work because it has a undiagnosed issue when it needs to then you will kicking yourself (false economy)
If you nvr / dvr says off line then as the others have illuded to, it’s a likely an ISP issue
can you send us a screen shot ?
how was your system set up? Did the installer scan the qr code with the hik app or is it set up by DNS ?
Did someone install the system for you or is it a DIY install by yourself ?
Never seen that - I think it was possibly lyntec many many years ago had a problem with fires in bell boxes but may be wrong - (I think that was down to the strobe / capacitor)
I suggest in this instance the bell suffered moisture or water ingress that in turn has shorted the battery out, with no over current protection on the battery it has shorted causing excessive heat / damage
Have you put new batteries in the fob?
may be worth deleting the fobs & then relearning them
If you delete them, learn one, test it if all ok learn the other