Our home has a
Paradox brand security system with a keypad:
Over the years the keypad had become more and more unreliable to the point where the
0 key was very difficult to press successfully, and the 4-digit access code used a
0. A service person who was replacing the battery added an access code which was the old one but with the
0 changed to a
A year or so on, and the same problem has developed with another key, so I looked into adding an access code myself. Turns out, the procedure for changing/adding access codes requires a master access code to be entered. The default access code according to the manual is
000000, but the first one doesn't work, and the second one involves pressing the
0 key, one of which I don't have. I believe these keypads usually work by pressing a conductive polymer against contacts on a printed circuit board. I would like to try cleaning this contact interface. Does anyone have any experience with this? In particular:
- is there a magic trick to getting the front fascia off?
- is the keypad likely to have an anti-tamper switch which will trigger the alarm, even is it isn't armed?
- can anyone offer advice as to what it is best to use to clean the contacts, assuming I can access them?