A home assistant blueprint to provide backups for broken bindings

tradfri-on-off-binding-backup.yaml

blueprint:
  name: ZHA - IKEA Tradfri on/off switch binding backup
  description: |
    The prefered way to control your zigbee lights is
    with direct bindings between the controllers and
    the bulbs, however bindings may fail and this 
    blueprint will notify you of the failure and
    then issue turn on/off commands for the failed
    devices - offering some redundancy
    this does not (yet) support backup dimming
    by default it then calls a script which can be
    downloaded at https://gist.github.com/HarvsG/b1508cc130d514ef690418a612ee9d47
    which will try to repair the binding.
  domain: automation
  input:
    remote:
      name: Remote
      description: The remote that will control the lights
      selector:
        device:
          integration: zha
          manufacturer: 'IKEA of Sweden'
          model: 'TRADFRI on/off switch'
    lights:
      name: Lights
      description: The lights to be controlled
      selector:
        entity:
          domain: light
          multiple: true
    post_action:
      name: Post-action
      description: Optional service call to run after main actions and only if
      default:
        - action: script.heal_ikea_zha_bindings
          metadata: {}
          data:
            bulb_field: "{{ unbound_lights | first }}"
            lightswitch_field: "{{remote}}"
      selector:
        action: {}
mode: restart
trigger:
- platform: event
  event_type: zha_event
  event_data:
    device_id: !input 'remote'
action:
- variables:
    command: "{{ trigger.event.data.command }}"
    cluster_id: "{{ trigger.event.data.cluster_id }}"
    endpoint_id: "{{ trigger.event.data.endpoint_id }}"
    lights: !input lights
    remote: !input remote
    unbound_lights: []
- delay: 00:00:01.50
- choose:
  - conditions:
      - "{{ command == 'on' }}"
      - "{{ cluster_id == 6 }}"
      - "{{ endpoint_id == 1 }}"
    sequence:
      - variables:
          unbound_lights: "{{ lights | select('is_state', 'off') | list }}"
      - condition: template
        value_template: "{{ unbound_lights != [] }}"
      - service: light.turn_on
        target:
          entity_id: "{{ unbound_lights }}"
  - conditions:
      - "{{ command == 'off' }}"
      - "{{ cluster_id == 6 }}"
      - "{{ endpoint_id == 1 }}"
    sequence:
      - variables:
          unbound_lights: "{{ lights | select('is_state', 'on') | list }}"
      - condition: template
        value_template: "{{ unbound_lights != [] }}"
      - service: light.turn_off
        target:
          entity_id: "{{ unbound_lights }}"
- condition: template
  value_template: "{{unbound_lights != []}}"
- service: persistent_notification.create
  data:
    title: Zigbee binding broken
    message: "{{ device_attr(remote, 'name_by_user') }} and lights {{ unbound_lights | join(', ') }}"
    notification_id: "lostbulb{{ unbound_lights | join('-') }}"
- sequence: !input post_action

Pairs well with a self-healing script

Community forum post with tutorial