First Alert Onelink and Z-Wave smart smoke/CO detectors enable smart home integration for safety monitoring. This guide covers common issues.
Onelink Won't Connect to WiFi
WiFi setup issues:
- Onelink app: Download First Alert Onelink app
- 2.4GHz only: Only connects to 2.4GHz WiFi networks
- Bluetooth pairing: Setup uses Bluetooth - enable on phone
- Reset: Press and hold test button until voice prompt
- Account: Create First Alert account before setup
Z-Wave Model Pairing
For Z-Wave smoke/CO detectors:
- Inclusion mode: Put hub in inclusion mode first
- Triple press: Press test button 3 times to enter pairing mode
- Range: May need to pair while close to hub
- Exclude: Exclude from any previous network before including
False Alarms
Reducing unwanted alerts:
- Placement: Keep away from kitchens, bathrooms, garages
- Dust: Vacuum around sensor openings to remove dust
- Steam: Steam from showers can trigger - relocate if needed
- End of life: Detectors should be replaced every 10 years
Safe & Sound Speaker Features
For Onelink Safe & Sound with Alexa:
- Alexa built-in: Functions as Alexa speaker and smoke detector
- Voice alerts: Announces type and location of alarm
- AirPlay: Supports AirPlay for music playback
- Nightlight: Has ambient light feature
Interconnected Alarms
Linking multiple detectors:
- Wired interconnect: Hardwired models can interconnect to all sound together
- Onelink wireless: Onelink models can interconnect wirelessly
- Smart alerts: All connected alarms can send phone notifications
HomeKit Integration
For HomeKit-compatible models:
- HomeKit code: Find code in Onelink app or on device
- Home app: Smoke sensor appears in Apple Home
- Automations: Can trigger automations when smoke/CO detected
- Home Assistant: Use HomeKit Controller to pair, or Z-Wave JS for Z-Wave models