Very intriguing, PM has been sent.
Dear Sir,
It is possible to change the Master Code on a Euro 46 Panel if it is lost but to do this you would need the Engineer Code to access the Engineer Menus.
If the Engineer Code is also not available then you would need an engineer on site and we can talk him through a method of retrieving access to the Engineer Menu's.
For obvious security reasons we would need to verify that a legitimate engineer is on site before we could divulge this information.
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