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Mend Scantronic 9427 Code

How to reprogramme scantronic 9427?

Security system has defaulted to manufactures setting after powercut. My security code is not working. Could anyone talk me through in very basic language and steps how I reset it so that my original alarm code will work again.
Thanks

Sarah Hayes
April 2012

Scantronic Scantronic 9427 Security Systems, Home Alarm Systems Scantronic 9427 Code

after changing battery my alarm code do not work any more so could you help me to reset it

davidking
August 2016

dont forget to remove mains power frompanel before you open it

gts
April 2012

then buy your self a new battery for the panel

gts
April 2012

key in 07890 key in 21 enter,key in your code,key in 99 enter,

gts
April 2012

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Scantronic 9427 Reset: Alarm Code Not Working