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GS819 Manual Rev. C
2.1 POWER indicator
The POWER indicator (green LED) is used to indicate power status of the CO alarm. The POWER indicator will flash every 30 seconds.
2.2 FAULT indicator
The FAULT indicator (yellow LED) is used to indicate fault or warning status of the CO alarm.
2.3 ALARM indicator
The ALARM indicator (red LED) is used to indicate alarm status of the CO alarm.
2.4 TEST/SILENCE button
The TEST/SILECNE button is used to test the unit and to silence the unit during alarm. Press and hold to enable TEST function, Or
press and hold about 0.2 second then release to enable SILENCE function.
2.5 Alarm sounder
The alarm sounder is used to send out CO alarm warning and fault warning information.
3. Understanding your CO alarm:
3.1 Start up
After connecting the battery, all three LEDs light up briefly and the CO alarm confirms start-up with a beep.
After power on, 30 seconds before the green LED flash every 3 seconds, This is preheated state, 30 seconds later the green LED
flashing every 30 seconds indicates the unit is functioning properly.
3.2 Normal operation
The POWER indicator (green LED) flashing every 30 seconds.
3.3 Fault warning
If the unit chirps once every 30 seconds, with FAULT indicator (yellow LED) will be flash. It indicates the CO alarm is in malfunction
condition. That means your CO alarm has no detecting function and no respond CO.
Replace battery, if condition continues, the CO alarm has malfunctioned. Replace immediately. Please contact us to more service.
3.4 Low battery voltage warning
If the alarm chirps twice every 30 seconds, with FAULT indictor (yellow LED) will be flash. It indicates the battery is low.
NOTE: You need to replace the batteries immediately when the alarm enters this status
.
NOTE: The alarm will not protect against the risk of carbon monoxide poisoning when the battery has drained.
NOTE: Refer to “5. Battery installation/replacement” when you hear the sounds of the low battery voltage warning.
3.5 Low battery voltage warning silence
When the alarm is under the low battery warning, pressing the TEST/SILENCE button, it will come into silence status for about 9 hours,
and FAULT indicator (yellow LED) still keep flashing.
NOTE: When alarm under the low battery warning, please replace the battery in time to ensure the normal working.
3.6 End of life warning
If the alarm chirps 3 times every 30 seconds with FAULT indicator (yellow LED) flash. It indicates end of life of the CO alarm. You need
to immediately replace the CO alarm.
