Light meaning and fix
Alarm.com ADC-VDB780B Blinking White Button Light
On the Alarm.com ADC-VDB780B, a blinking white button LED means the doorbell is in AP pairing mode.
On the Alarm.com ADC-VDB780B, a blinking white button LED means the doorbell is in AP pairing mode.
What it means
The doorbell is broadcasting or preparing an access point setup mode so it can be configured.
Device details
| Device type | Wireless video doorbell |
|---|---|
| Brand | Alarm.com |
| Model | ADC-VDB780B |
| Light name | Button LED |
| Light location | Front doorbell button |
| Color | White |
| Pattern | Blinking |
| Severity | info |
| Last verified | 2026-05-02 |
What to do first
Continue the app setup process and connect using the pairing instructions from your provider.
- Keep the doorbell powered and close to your phone during setup.
- Follow the Alarm.com or provider setup flow.
- Connect to the temporary setup network if the instructions ask you to.
- Enter the correct Wi-Fi information.
- If setup fails, restart pairing mode and try again.
When this can be normal
This is normal during AP mode setup.
When to stop troubleshooting
Stop and contact the service provider if the doorbell cannot complete setup after repeated attempts.
Parts or products that may help
Only replace parts when the light pattern and official guidance support it. Some lights indicate setup or software states, not broken hardware.
- No replacement part is recommended from this light pattern alone. Troubleshoot the device state first.
FAQ
What does blinking white mean on the ADC-VDB780B?
Alarm.com lists blinking white as AP pairing mode.
Is AP mode the same as WPS mode?
No. AP mode and WPS mode are different setup methods.
What should I do if blinking white never completes setup?
Restart setup, verify Wi-Fi details, and contact your service provider if the issue continues.
This guide is based on: Alarm.com ADC-VDB780B LED Meaning Guide.
Source type: official_support_page. Confidence: verified. Last verified: 2026-05-02.
Setup process can vary depending on the Alarm.com provider account.