How to fix Response Alarms Security System control unit with power LED off?
- TTracy Barry PhDAug 19, 2025
If the Response Alarms Security System control unit isn't working and the power LED is off or flashing, check if other electrical circuits are working. Also, verify that the mains adapter is correctly plugged into the socket and the socket is switched on. Ensure the DC jack plug from the mains adapter is properly connected to the control panel. Finally, inspect the fuse or MCB in the consumer unit on the circuit serving the control panel.