First Alert Smart Smoke/CO Alarm Not Connecting or Alerting

First Alert smart smoke/CO alarms provide critical safety alerts with smart home integration. This guide covers setup and alerting issues.

WiFi Alarm Setup (SC5)

1. Use First Alert app (Onelink) for setup
2. Alarm requires 2.4GHz WiFi
3. Hold test button for pairing mode
4. Follow app prompts for configuration
5. Voice alerts announce alarm type

Z-Wave Alarm Pairing

1. Put Z-Wave hub in inclusion mode
2. Press test button on alarm briefly
3. Wait for inclusion confirmation
4. Alarm creates multiple entities (smoke, CO, battery)
5. Wire interconnect still works for local alarms

Alarm Not Sending Notifications

1. Check app notification permissions
2. Verify alarm is online in app
3. Test button should trigger notification
4. Z-Wave: Check hub receives alarm state
5. Configure critical alerts on phone

False Alarms

1. Clean alarm with vacuum or compressed air
2. Avoid installation near kitchen/bathroom
3. Steam and cooking smoke cause false triggers
4. 10 feet from cooking appliances minimum
5. Replace alarm after 7-10 years

Battery and Power

1. Hardwired alarms have battery backup
2. Replace backup battery when chirping
3. Battery-only models need fresh batteries
4. Low battery alerts sent via smart features
5. Test monthly per fire safety guidelines

Interconnected Alarms

1. Wire interconnect triggers all alarms
2. Smart features work independently
3. Z-Wave/WiFi alerts are per-device
4. Create automations for whole-home alerts
5. Voice announcements identify location