wolfgang ziegler

„make stuff and blog about it“

Fixing unavailable deCONZ devices in Home Assistant

July 21, 2023

Disclaimer: Sometimes, devices may actually stop working (or their battery is just empty). If that's not the case however, and you think that your device should actually work, keep reading.

I'm using the the Home Assistant deCONZ integration with a ConBee II USB stick to control my ZigBee devices.

From time to time it happens though that one of those ZigBee devices becomes unavailable. This is usually quite frustrating, costing me hours of trial and error, resetting, unpairing, pairing ... these devices.

The dreaded "sensor unavaible" state in Home Assistant

Over time, I came up with an "algorithm" to fix such a situation as efficiently as possible (given the device is actually still working).

Remove the device

As the first step, open the deCONZ integration, find the unavailable device and delete it.

The unavailable device in the deCONZ integration

Then, run the deCONZ: Remove oprhaned entries service in Home Assistant's Developer Tools

Remove orphaned deCONZ devices in Home Assistant

Restart Home Assistant

I'm not 100% sure that this is actually necessary, but I keep doing it.

Pair the Device

Open the deCONZ integration again, add the device there and put the device into pairing mode.

Sensor ready in deCONZ

The device should show up now in deCONZ and in Home Assistant with its original entity ID. This also means that any automation referencing this ID will also start working again.

Of course, your mileage may vary, but this approach has worked very well for me in the past.