Mend Security Systems, Home Alarm Systems
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Home Alarm Systems
I had a house power failure and the control box (in roof) made a few strange noises and the strobe outside began to flash every 10 secs or so.
Entered controlbox when power restored and checked battery-12.36v .(when in alarm condition battery voltage 5.8v)
keypad now responsive but does not recognise my original user code. Engineers code (4321)also not accepted.
Am replacing the battery but i will still have no control over the keypad.
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