Resetting your dsc alarm system by adding, deleting, and overwriting codes is just one way of being in control of your home security. For added protection, you need to maintain your alarm. 197k views 12 years ago. New project 2 copy 3. more. You can reset a dsc impassa to factory defaults by first unplugging the ac transformer and disconnecting the battery to cut power. Then connect a jumper between. Certain sensors (such as smoke detectors and glass break detectors) have to be reset after an alarm. To reset detectors, press and hold the reset key ( ) for 2 seconds. If a sensor fails. Perform a system reset on the dsc alarm panel to clear the yellow triangle and reset the system. Depending on the model of the alarm panel, this may involve pressing a. To arm all sensors in away mode when you are leaving the premises, press and hold [away] or enter your [security code]. To arm all sensors. To arm all sensors in away mode when you are leaving the premises, press and hold the [away] button. To arm in stay mode when you are not. In the absence of the above remedies, change the dsc alarm system settings if it is not working correctly. The user manual can help with reset instructions. For detailed information about the powerseries neo alarm system, refer to the full online manual, which can be accessed from the dsc. com web site. Some features must be enabled. The smoke detector (wired to unit) set off the alarm. Only the master code was entered to shut it off. It says system open : Smoke detector. the manual says to goto output. To arm all sensors in away mode when you are leaving the premises, press and hold the [away] button or enter your [security code]. The alarm system (panel and communicator) need to be set up in order to connect to the server that provides the connection service for the connect alarm smartphone application. While the need to reset your system is rare (many systems run for a decade or more without a reboot) it can come up. We list below simple reboot instructions for the major. To reset the alarm or the warning lights, enter your master code twice, press the reset button, and then enter “*72” if the alarm is still ringing. Once the alarm is off, try to find out why it went off. A dsc alarm system should run off of battery power for several hours during a power outage, but if you have a longer period of downtime, the batteries can be drained. When that happens, you. To cancel fire alarm press [#] within 30 seconds of alarm, otherwise the signal will be sent to the central station. To reset the smoke detectors press [*] then hold down the [4] for several.