Qundis Q heat 5.5 R mismatch of value and unit of measurement in Home Assistant

[hubikj]

When I analyze the telegram (see link below), it shows the correct value in kWh (2651.5), which corresponds to ~9.5 GJ, which is what the physical display of the meter shows. In Home Assistant, the value of total_energy_consumption shows up with unit of measurement kWh, but the value is ~9500 which would be correct if it was MJ. Changing the unit of measurement in Home Assistant does not fix the problem, because the value is also converted to ~34000.

https://wmbusmeters.org/analyze/41449344533743674637725337436793444604620000200c0d545409004c0d36840300426cdf2ccc080d37330900c2086cff2a02fd170000326cffff046d130Be72B

I do not have the latest telegram, but here is what Home Assistant currently sees for the sensor (the captured telegram is also quite fresh):

[github-actions[bot]]

This issue is stale because it has been open for 2 month with no activity. Remove stale label or comment or this will be closed in 1 month.

[hubikj]

This issue is still present. I imagine it should be easy to fix. Let me know if I can do something to help. Thanks.

[github-actions[bot]]

This issue is stale because it has been open for 2 month with no activity. Remove stale label or comment or this will be closed in 1 month.

[hubikj]

Bump

[github-actions[bot]]

This issue is stale because it has been open for 2 month with no activity. Remove stale label or comment or this will be closed in 1 month.

[weetmuts]

Strange, I am looking at the ./wmbusmeters-ha-addon/mqtt_discovery/qheat.json file. I am not an expert, but it looks ok.

Do you have some extra setting in the wmbusmeters.conf or HA-addon. Such a big problem should have been seen by others.

[hubikj]

I did not change anything from the defaults. This is how I have the meter configured:

I can get another entity with the correct value by manually setting it up in my configuration.yaml:

mqtt:
  sensor:
    - state_topic: "wmbusmeters/Heating"
      json_attributes_topic: "wmbusmeters/Heating"
      unit_of_measurement: "MJ"
      state_class: total_increasing
      device_class: energy
      value_template: "{{ value_json.total_energy_consumption_kwh }}"
      name: Heating
      icon: "mdi:radiator"
      unique_id: heating

This basically takes the value that is supposedly in kWh (which is wrong) and interprets it as MJ (which is what I described in the OP of this issue).