Unavailable device shown as available

Third party integrations
1

I’m starting to learn zigbee2mqtt so doing experiments.
I have a paired Zigbee switch, which I disconnected from power supply expecting it will turn unavailable.

While in MQTT confirms it, HA still shows it as OFF.

Here is autodiscovery topic of this device:

{
  "availability": [
    {
      "topic": "zigbee2mqtt/bridge/state"
    },
    {
      "topic": "zigbee2mqtt/zb3_switch_1/availability"
    }
  ],
  "command_topic": "zigbee2mqtt/zb3_switch_1/set",
  "device": {
    "identifiers": [
      "zigbee2mqtt_0x00158d000449dccc"
    ],
    "manufacturer": "Nue / 3A",
    "model": "Smart in-wall switch (HGZB-01A)",
    "name": "zb3_switch_1",
    "sw_version": "Zigbee2MQTT 1.16.1-dev"
  },
  "json_attributes_topic": "zigbee2mqtt/zb3_switch_1",
  "name": "zb3_switch_1_switch",
  "payload_off": "OFF",
  "payload_on": "ON",
  "state_topic": "zigbee2mqtt/zb3_switch_1",
  "unique_id": "0x00158d000449dccc_switch_zigbee2mqtt",
  "value_template": "{{ value_json.state }}"
}

Availability topic looks correctly:
obrazek

But HA thinks it’s off

obrazek
obrazek2029×86 8.47 KB

I can see no payload_not_available definition but offline is default expected value.
What am I missing?
is it autodiscovery issue or z2m?

thank you.

2

You need reporting and availability_timeout configured in your zigbee2mqtt config, otherwise devices will always remain in their last known state.

3

I have both set. Without them availability is not reported to mqtt.
I also have HueGo which currently is also unavailable and this fact is picked by HA up correctly.

{
  "availability": [
    {
      "topic": "zigbee2mqtt/bridge/state"
    },
    {
      "topic": "zigbee2mqtt/HueGo/availability"
    }
  ],
  "brightness": true,
  "brightness_scale": 254,
  "color_temp": true,
  "command_topic": "zigbee2mqtt/HueGo/set",
  "device": {
    "identifiers": [
      "zigbee2mqtt_0x00178801060da1a7"
    ],
    "manufacturer": "Philips",
    "model": "Hue Go (7146060PH)",
    "name": "HueGo",
    "sw_version": "Zigbee2MQTT 1.16.1-dev"
  },
  "effect": true,
  "effect_list": [
    "blink",
    "breathe",
    "okay",
    "channel_change",
    "finish_effect",
    "stop_effect"
  ],
  "hs": false,
  "json_attributes_topic": "zigbee2mqtt/HueGo",
  "name": "HueGo_light",
  "schema": "json",
  "state_topic": "zigbee2mqtt/HueGo",
  "unique_id": "0x00178801060da1a7_light_zigbee2mqtt",
  "xy": true
}

obrazek
obrazek974×65 7.26 KB

obrazek
obrazek2017×183 16.7 KB

4

I created manually switch based on the same mqtt topic.
And it works as expected:

switch:
  - platform: "mqtt"
    name: "zb3_switch_1_test"
    unique_id: "zb3_switch_1_test"
    state_topic: "zigbee2mqtt/zb3_switch_1"
    availability_topic: "zigbee2mqtt/zb3_switch_1/availability"
    payload_off: "OFF"
    payload_on: "ON"
    value_template: "{{ value_json.state }}"
    command_topic: "zigbee2mqtt/zb3_switch_1/set"

obrazek
obrazek1909×58 6.95 KB

MQTT discovery bug?

5

The only difference between mentioned switch and HueGo was, that reporting and availability_timeout params has been enabled after pairing the switch but before pairing HueGo.

After system restart, it started to work as expected.

Seems like autodiscovery caches the fact that ‘availability’ information was inexistent at time of creating entity. If availability information is added later, HA must be restarted to pick up this information

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