Cannot pair E1743 (tradfri on/off switch)

Device support
1

Hi,
I’m having trouble pairing the tradfri switch to Zigbee2MQTT. I’m using version 1.7.1. Tried two different tradfri remotes. They have firmware version 2.0.020 and 2.2.008 (latest).

Tried the procedure multiples times (>20):

  1. Allow devices to join
  2. press 4 times link button
  3. Device glows, after a few seconds begins pulsing
  4. Waiting (tried also to push or hold on/off button)

No luck. Tried to hold it near the sniffer… 2cm - 2 meters…

Logging shows no activity in home-assistant

Does someone has any suggestions?

Regards

2

Try restarting zigbee2mqtt first. Might help.

3

Hi Francis,
Thanks for the tip. Unfortunatly I tried that several times (including restarting complete server). No luck.
Regards

4

Did some extra research:
Changed batteries of the on/off switches ==> no success

I did find a device with no components in zigbee2mqtt assistant. I remember when I tried to pair the first switch I saw in the log that a unknown device was found.

Can it be that this blocks the pairing of the on/off switches? I don’t think because I tried to pair 2 switches so than I would suspect that 2 unknown devices were detected. I only see one.

However. I tried to remove the device (zigbee2mqttassistant) but I get an error message. Manually removing from configuration.yaml didn’t work. So the device still shows.

Any suggestions how to proceed and also howto remove the device?

regards

5

I did solve the issues (by accident)

  1. Not pairing of the E1743
    I had to stop Zigbee2MQTT, remove the C2531 from USB port, insert it again and restart Zigbee2MQTT.
    Voila, immediately pairing both the Tradfri switches.

  2. Removing device with no components
    I had to force remove the device with MQTT. Normal removing (Zigbee2MQTT assistant) doesn’t work.

Regards

1 Like
6

This sounds similar to an issue that we had with the Ikea outlets when they came out - after pairing one you couldn’t pair anything else until you rebooted and then reset the stick using the button next to the green LED before starting zigbee2mqtt.

7

Thanks, I had the same issue and and had success with pairing the switch by this method.

8

I have the same problem with a switch e1743 and motion sensor e1745 but all bulbs are working.
How do you remove device with MQTT.
Sorry i’m not a professionnal and my english is very bad.

10

Had the same problem with an E1603. It worked with just connecting and disconnecting my cc2531.