Thanks for the replies.
This morning I opened the panel and simply disconnected the battery, and reconnected a few minutes later.
Once the battery was reconnected, the alarm started to sound. I just entered my original code to disable it.
It's been working fine since.
Cheers again...
Hi All
Yesterday, my wife switched on the ceiling lights in the lounge, but the light bulb blew and tripped out the circuit breaker on the main fuse panel. Bulb has been replaced and the circuit breaker reset, and lights now work fine.
However, since then the C&K alarm has failed to work...