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If your IKEA Tradfri smart bulb won't pair with the remote, gateway, or third-party hubs, or isn't responding to commands, this guide will help you troubleshoot these issues.

Bulb Won't Pair with Tradfri Remote

To pair a bulb directly to a Tradfri remote:

  • Position the remote within 5cm of the bulb
  • Turn the bulb on
  • Press and hold the pairing button on the remote for 10 seconds
  • The bulb should flash once indicating successful pairing
  • If it doesn't flash, reset the bulb first (see below)
  • One remote can control multiple bulbs

Bulb Won't Connect to Dirigera/Gateway

For hub-based setup issues:

  • Reset the bulb before trying to add it to the gateway
  • Keep the bulb close to the gateway during initial setup
  • Use the IKEA Home smart app (not the old Tradfri app)
  • Ensure the gateway firmware is up to date
  • Check that the gateway is connected to your network
  • Try power cycling the gateway

Pairing with Third-Party Hubs (Hue, SmartThings)

IKEA bulbs use Zigbee and can pair with other hubs:

  • Reset the bulb first by toggling power 6 times
  • Put your hub into Zigbee pairing mode
  • Turn on the bulb - it should be discovered
  • Philips Hue: Use the "Search" function in the Hue app
  • Some features may be limited on third-party hubs
  • Distance to hub matters during initial pairing

Bulb Not Responding to Commands

When the bulb stops responding:

  • Check if the physical light switch is turned off
  • Verify the bulb is still connected in the app
  • Power cycle the bulb by turning the switch off for 10 seconds
  • Check if other Tradfri devices are also affected (gateway issue)
  • Move the bulb closer to the gateway or add a repeater
  • Try controlling with the physical remote

Remote Not Controlling Bulb

If the remote stops working:

  • Replace the remote battery (CR2032)
  • Re-pair the remote to the bulb
  • Check that the bulb is still paired to the remote
  • Reset both the remote and bulb and pair again
  • Ensure nothing is blocking the signal path
  • Clean the battery contacts in the remote

Bulb Flickering or Not Dimming Properly

For lighting quality issues:

  • Ensure the bulb isn't in a fixture with a physical dimmer
  • Check the bulb is fully screwed into the socket
  • Update firmware if connected to a gateway
  • Try the bulb in a different fixture
  • Flickering at low brightness may be normal for some bulbs
  • Replace if flickering persists - may be defective

Zigbee Range Issues

If the bulb loses connection frequently:

  • Tradfri bulbs act as Zigbee repeaters when powered
  • Add more Tradfri bulbs between the gateway and problem bulbs
  • Use Tradfri signal repeater for extended range
  • Keep the gateway away from WiFi routers
  • Metal objects and thick walls reduce Zigbee range

Reset the Tradfri Bulb

To factory reset:

  • Turn the bulb off
  • Turn on for 0.5 seconds, off for 0.5 seconds - repeat 6 times
  • On the 6th time, leave the bulb on
  • The bulb will flash once to confirm reset
  • The bulb is now ready to pair with any controller
  • You may need to remove it from your gateway app first