If you are able to restore power to a totally depowered alarm system, the siren will sound for a second or two and then stop. Check to see if there is power coming from the receptacle where the alarm transformer is plugged in. You can turn off and on each circuit breaker to see if power returns. You need to check your fuses or circuit breakers to see if a fuse has blown or a circuit has tripped. When that battery is drained, the system will become dead. If, for some reason, there is no AC going to the circuit for the alarm, the panel will run on a backup battery for several hours. ![]() It may be at your fuse panel / circuit breaker panel. ![]() ![]() There is a transformer for the alarm panel either plugged into or wired into an AC receptacle somewhere on your premises. Check the manual for instructions on recalling “Trouble” The keypad may indicate A/C failure, if this is the case, you will need to restore Hydro to the alarm system. Prior to the alarm going dead, you would note that the “Trouble” light is on and beeping.
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