Switching from Zigbee Home Automation integration to zigbee2mqtt went wrong

Configuration Zigbee
1

Hey,

I decided to implement zigbee2mqtt instead of direct integration for my TRV (Viessmann).

I deleted the zigbee nodes (TRV) from the integration and tried to add it to zigbee2mqtt.

It’s does not work, I cannot add the TRV to zigbee2mqtt nor the integration nor the official viessmann application.

Seems TRV are ‘locked’ to previous network that no longer exists and refuse to join / be discovered by a new network. my 2 cents, I could be wrong.

Any guidance how I could add my TRV to zigbee2mqtt or any other as long as it restore my access :slight_smile:

Thanks

3

Found how to factory reset the Viessmann TRV [ZK03840]

Remove the battery, press and hold the button while re-inserting battery. done; factory reset !

I can now my devices back.