Programming the AC-A4x
40 AC-A4x Installation and Programming Manual
If the Programming code is valid, all memory is erased, three
beeps are emitted, and the controller returns to Normal
mode.
If the Programming code is invalid, a long beep is emitted,
and the controller returns to Normal mode without erasing
the memory of the controller.
11.14 Replacing a Lost Programming Code
To be able to replace a lost programming code, the unit must
be in Normal mode. Before proceeding, verify that the Mode
LED is green.
1. Remove power from the controller.
2. Press the REX button.
3. Apply power to the unit while pressing the REX button.
4. Release the REX button.
5. You have 15 seconds to program a new Programming code into
the unit using the initial default code 1234 before the controller
reverts to the existing code.
11.15 Replacing a Lost Normal/Secure Code
To be able to replace lost Normal/Secure code, the unit
must be in Secure mode. Before proceeding, verify that the
Mode LED is red.
1. Remove power from the AC-A4x.
2. Press the REX button.
3. Apply power to the unit while pressing the REX button.
4. Release the REX button.
5. You have 15 seconds to program a new Normal/Secure code into
the unit using the initial default code 3838 before the controller
reverts to the existing code.