How to Restore User and Installer Access Codes in Visonic Alarm Systems
You can reset the user and installation codes to their default settings by carrying out one of the following reset procedures. This will only reset the codes and no other settings.
To restore the user and installer access codes for the following Visonic control panels:
Powermax Express
Powermax Complete
Powermax Pro
Powermaster 10 PG2
Powermaster 30 PG2
Powermaster 33 PG2
1. Isolate mains power to the control panel.
2. Open the control panel and disconnect the battery.
3. Locate the 3 pins marked DEF and fit a jumper across the two default pins D and E.
4. Reconnect the battery for a period of 10 seconds.
5. Disconnect the battery and remove the jumper from pins D and E.
6. Reconnect the battery.
7. Close the control panel.
8. Re-apply the mains power.
9. Check that the codes have defaulted to 1111 (User) and 9999 (Installer).
10. Change both codes immediately. Everyone knows the defaults!
11. Don't forget your new codes.

To restore the installer access codes for the following Visonic control panels:
Powermaster 360 PG2
Powermaster 360R PG2
Powermaster 360RW PG2

With the panel backplate removed, plug in the AC power supply and apply mains power. (the amber status LED will illuminate)
Press the + and - buttons together for 10 seconds (The LED status light will turn green and confirmation beeps will sound)
The installer codes are now restored to their default
Installer code: 8888
Master installer code: 9999