Home Assistant 2025.3.1: Entity missing; Error 'The unit of measurement % is not valid together with device class temperature'

[jan666]

Description

I updated to Home Assistant 2025.3.1 and now I miss the Mixer Movemet of my VR 70.

2025-03-11 07:22:07.351 ERROR (MainThread) [homeassistant.components.mqtt.entity] Error 'The unit of measurement %is not valid together with device classtemperature' when processing MQTT discovery message topic: 'homeassistant/sensor/ebusd_vr_70_Mc2FlowTempDesired_MixerMovement/config', message: '{'unique_id': 'ebusd_vr_70_Mc2FlowTempDesired_MixerMovement', 'device': {'identifiers': 'ebusd_vr_70', 'manufacturer': 'ebusd.eu', 'via_device': 'ebusd', 'sw_version': '24.1', 'suggested_area': 'Heating', 'name': 'ebusd vr_70'}, 'value_template': '{{value_json["MixerMovement"].value}}', 'state_topic': 'ebusd/vr_70/Mc2FlowTempDesired', 'unit_of_measurement': '%', 'state_class': 'measurement', 'device_class': 'temperature', 'name': 'Mc2FlowTempDesired MixerMovement'}'

I think I saw this error before (everything worked with 2025.3.0) but it was more a warning?

There is more

2025-03-11 07:21:51.213 ERROR (MainThread) [homeassistant.components.mqtt.entity] Error 'The unit of measurement `percent` is not valid together with device class `power`' when processing MQTT discovery message topic: 'homeassistant/sensor/ebusd_hmu_BuildingCircuitPumpPower_percent3/config', message: '{'unique_id': 'ebusd_hmu_BuildingCircuitPumpPower_percent3', 'device': {'identifiers': 'ebusd_hmu', 'manufacturer': 'ebusd.eu', 'via_device': 'ebusd', 'sw_version': '24.1', 'suggested_area': 'Heating', 'name': 'ebusd hmu'}, 'value_template': '{{value_json["percent3"].value}}', 'state_topic': 'ebusd/hmu/BuildingCircuitPumpPower', 'unit_of_measurement': 'percent', 'state_class': 'measurement', 'device_class': 'power', 'name': 'BuildingCircuitPumpPower '}'
2025-03-11 07:21:51.217 ERROR (MainThread) [homeassistant.components.mqtt.entity] Error 'The unit of measurement ` ` is not valid together with device class `energy`' when processing MQTT discovery message topic: 'homeassistant/sensor/ebusd_hmu_CopCoolingMonthSensor_energy/config', message: '{'unique_id': 'ebusd_hmu_CopCoolingMonthSensor_energy', 'device': {'identifiers': 'ebusd_hmu', 'manufacturer': 'ebusd.eu', 'via_device': 'ebusd', 'sw_version': '24.1', 'suggested_area': 'Heating', 'name': 'ebusd hmu'}, 'value_template': '{{value_json["energy"].value}}', 'state_topic': 'ebusd/hmu/CopCoolingMonthSensor', 'unit_of_measurement': ' ', 'state_class': 'total_increasing', 'device_class': 'energy', 'name': 'CopCoolingMonthSensor '}'
2025-03-11 07:21:51.218 ERROR (MainThread) [homeassistant.components.mqtt.entity] Error 'The unit of measurement ` ` is not valid together with device class `energy`' when processing MQTT discovery message topic: 'homeassistant/sensor/ebusd_hmu_CopCoolingSensor_energy/config', message: '{'unique_id': 'ebusd_hmu_CopCoolingSensor_energy', 'device': {'identifiers': 'ebusd_hmu', 'manufacturer': 'ebusd.eu', 'via_device': 'ebusd', 'sw_version': '24.1', 'suggested_area': 'Heating', 'name': 'ebusd hmu'}, 'value_template': '{{value_json["energy"].value}}', 'state_topic': 'ebusd/hmu/CopCoolingSensor', 'unit_of_measurement': ' ', 'state_class': 'total_increasing', 'device_class': 'energy', 'name': 'CopCoolingSensor '}'

Actual behavior

Entity missing

Expected behavior

Entity should be there again. MixerMovement with unit % should not be a temperature?

ebusd version

24.1

ebusd arguments

--scanconfig -d ens:/dev/ttyACM0 -c /home/pi/git/ebusd-configuration/ebusd-2.1.x/de/ --log=all:error --httpport=8080 --mqtthost 192.168.42.254 --mqttport 1883 --mqttuser ebusd --mqttpass ebusd --mqttint=/etc/ebusd/mqtt-hassio.cfg --mqttjson

Operating system

Debian 12 (Bookworm) / Ubuntu 22-23 / Raspberry Pi OS 12 (including lite)

CPU architecture

arm64

Dockerized

None

Hardware interface

Adapter Shield v5 via USB

Related integration

No response

Logs

nothing relevant

[chrizzzp]

Same here after update to HA core 2025.3.1. More entities not getting updated any longer. Seems to affect for instance pressure entities recognized as 'temperature' device class.

• Error 'The unit of measurement 'bar' is not valid together with device class 'temperature' when processing MQTT discovery message topic: 'homeassistant/sensor/ebusd_hmu_Status07_DisplaySystemPressure/config', message: '{'unique_id': 'ebusd_hmu_Status07_DisplaySystemPressure', 'device': {'identifiers': 'ebusd_hmu', 'manufacturer': 'ebusd.eu', 'via_device': 'ebusd', 'sw_version': '24.1', 'suggested_area': 'Heating', 'name': 'ebusd hmu'}, 'value_template': '{{value_json["DisplaySystemPressure"].value}}', 'state_topic': 'ebusd/hmu/Status07', 'unit_of_measurement': 'bar', 'state_class': 'measurement', 'device_class': 'temperature', 'name': 'Status07 DisplaySystemPressure'}'

• Error 'The unit of measurement 'bar' is not valid together with device class 'temperature' when processing MQTT discovery message topic: 'homeassistant/sensor/ebusd_vwz00_RunDataSystemPressure_pressv/config', message: '{'unique_id': 'ebusd_vwz00_RunDataSystemPressure_pressv', 'device': {'identifiers': 'ebusd_vwz00', 'manufacturer': 'ebusd.eu', 'via_device': 'ebusd', 'sw_version': '24.1', 'suggested_area': 'Heating', 'name': 'ebusd vwz00'}, 'value_template': '{{value_json["pressv"].value}}', 'state_topic': 'ebusd/vwz00/RunDataSystemPressure', 'unit_of_measurement': 'bar', 'state_class': 'measurement', 'device_class': 'temperature', 'name': 'RunDataSystemPressure pressv'}'

• Error 'The unit of measurement 'bar' is not valid together with device class 'temperature' when processing MQTT discovery message topic: 'homeassistant/sensor/ebusd_vwz00_Status07_DisplaySystemPressure/config', message: '{'unique_id': 'ebusd_vwz00_Status07_DisplaySystemPressure', 'device': {'identifiers': 'ebusd_vwz00', 'manufacturer': 'ebusd.eu', 'via_device': 'ebusd', 'sw_version': '24.1', 'suggested_area': 'Heating', 'name': 'ebusd vwz00'}, 'value_template': '{{value_json["DisplaySystemPressure"].value}}', 'state_topic': 'ebusd/vwz00/Status07', 'unit_of_measurement': 'bar', 'state_class': 'measurement', 'device_class': 'temperature', 'name': 'Status07 DisplaySystemPressure'}'

[itsopti]

Have a look at home-assistant/core#140313

Should be fixed at next 2025.3.2 but ebusd needs to use correct units of measurement per device class until 2025.07

[jan666]

Yes, it works again with 2025.3.2 (WARNING, not ERROR again)

2025-03-12 06:43:58.660 WARNING (MainThread) [homeassistant.components.sensor] Entity sensor.vr_70_mc2flowtempdesired_mixermovement (<class 'homeassistant.components.mqtt.sensor.MqttSensor'>) is using native unit of measurement '%' which is not a valid unit for the device class ('temperature') it is using; expected one of ['°C', 'K', '°F']; Please update your configuration if your entity is manually configured, otherwise create a bug report at https://github.com/home-assistant/core/issues?q=is%3Aopen+is%3Aissue+label%3A%22integration%3A+mqtt%22

but like @itsopti said it will stop working in 2025.7

[chrizzzp]

Should be fixed at next 2025.3.2 but ebusd needs to use correct units of measurement per device class until 2025.07

I think in case of the mixer movement the unit of measurement is OK, but the device class should not be 'temperature', but rather 'power factor' which allows the unit '%'. Or how to deal with sensors which do not fit in any of these device class categories?

Same with the pressure entities above: the device class is misassigned to 'temperature' instead of 'pressure'.

So is this an issue of the mqtt_hassio.cfg (which I did not update with 24.1 as I have custom changes) or of ebusd (24.1) itself?