Why doesn't the Armed light turn on immediately when arming my Ness D8X Control Panel with a radio key?
- EEric McclureSep 9, 2025
This is normal operation when arming of Monitor mode by radio key is enabled.

Why doesn't the Armed light turn on immediately when arming my Ness D8X Control Panel with a radio key?
This is normal operation when arming of Monitor mode by radio key is enabled.
What to do if a zone light is unsealed when arming my Ness D8X Control Panel?
If a zone light (like a PIR or reed switch) is unsealed during arming, find the cause of the movement or ensure that all doors and windows are properly closed.
Why is my Ness D8X Control Panel beeping 10 times?
Ten beeps from the keypad indicate that the mains power might be off, the panel’s backup battery could be low, or a Radio Device battery may be low. Ensure the plug pack is properly connected and the power point is switched on. If the problem persists, the backup battery may require replacement; in this case, it's best to call your installer.
Why can't I enter Program Mode on my Ness Control Panel?
You may not be able to enter Program Mode if the panel is armed or if you are using a user code instead of the Master Code. Disarm the panel and try again using the Master Code.
What does it mean if the EXCLUDE light is flashing on my Ness D8X Control Panel?
A flashing EXCLUDE light indicates that one or more zones have been excluded from the system.
How to fix TAMPER light flashing on Ness D8X?
If the TAMPER light is flashing, it indicates that the 24-hour Tamper input has been triggered, possibly by a Siren tamper or box tamper. Contact your installer to resolve this issue.
Why can't I arm my Ness Control Panel and the EXCLUDE light is on?
If you cannot arm the system and the EXCLUDE light is on, it means you are in Exclude mode. To exit this mode, simply press the E button.
What to do if my Ness Control Panel gives a 2 second siren at the end of exit delay time?
If you hear a 2-second siren at the end of the exit delay, it means a zone was unsealed during that time. Disarm the panel and then check all zones to identify the cause.
What does it mean if the ALARM MEMORY light is flashing on my Ness Control Panel?
A flashing ALARM MEMORY light indicates that there are alarms stored in the system's memory. To clear the light, view the Alarm memory; otherwise, it will automatically clear the next time you arm the panel.
Why is the siren sounding while my Ness D8X is disarmed?
If the siren sounds while the panel is disarmed, it means a 24-hour zone has been triggered, such as a Siren Tamper, Box Tamper, or Panic Button. To resolve this, reset the alarm by disarming the panel and call your installer.
| Brand | Ness |
|---|---|
| Model | D8X |
| Category | Control Panel |
| Language | English |
Details system alarms like Mains Power Fail, Panel Battery Low, and Dialler Communications Fail.
Covers Radio Low Battery, Radio Tamper, Radio Supervision, and Tamper alarms.
Instructions on how to arm the panel, including siren warnings for unsealed zones.
How to disarm the system, handle entry errors, and the Auto Re-Arm function.
Allows arming specific zones while remaining at home, with conditions for Area 2.
How to send a silent alarm to the central station when disarming under duress.
Procedures for triggering Panic, Medical, or Fire alarms via the keypad.
How to manually exclude zones that cannot be sealed when arming the system.
Using the onboard Real Time Clock for automatic arming, output control, and user code management.
A table of common symptoms, their causes, and recommended remedies for system issues.