Home Security Systems
Home Security System Repair Questions? Ask a Technician.
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Can you see any brand or model number on the system at all?
On some systems, you can enter your code then press [9 CHIME] to turn the chime on and off.
Is that what you have used in the past?
The Honeywell systems will normally show AC on the display when AC power is connected.
Is the back door sensor wired or wireless?
If it is wireless, try changing the battery.