
1. Introduction
Page 4 497096, issue 3
To restore all access codes to their default settings:
1. Remove mains power.
2. Open the case and disconnect the battery.
3. Identify the NVM Reset pins and Kick Start pins on the main PCB (refer
to the 9x5x Installation Guide).
4. Short circuit the NVM Reset pins with a wire link.
5. Short circuit the Kick Start pins with a wire link.
6. Reconnect the battery.
7. Remove the wire links from the NVM Reset pins and Kick Start pins.
The control unit will load the factory default access codes listed above.
8. Close the control unit.
9. Apply mains power.
10. Carry out an engineer reset (see next section).
Performing an Engineer Reset
To perform an engineer reset:
1. Check that the display is showing the alarm condition.
2. Enter installer mode.
3. Enter 99 yy.
The display returns to the time and date.
Restoring Default Command Settings
To restore all command options to their default (original) settings:
1. Enter installer mode.
2. Press 98y at the keypad.
The display shows:
Load Default
3. Press 1y at the keypad.
The display shows (for example):
Mult Sys? OFF
4. Either:
Press 1 to create a partitioned system
Or press 0 to create a single system
See page 75 for information about single and partitioned systems.
The display shows (for example):
Mult Sys? ON
5. Press y.
The keypad gives a double "beep" confirmation tone and the control unit
loads the default settings, erasing all previous selections.
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