Error numeric value?

cliccasu · February 3, 2023, 9:21pm

Hi friends, I have energy sensors, when I restart it gives me these errors. How can I do. Thank you

Sensor sensor.prodotta_potenza_a has device class None, state class None and unit W thus indicating it has a numeric value; however, it has the non-numeric value: unknown (<class ‘str’>); Please update your configuration if your entity is manually configured, otherwise create a bug report.

template:
  - sensor:
    # SONDA A (PRELEVATA)
    - name: 'Prelevata Tensione'
      icon: mdi:power-plug
      unit_of_measurement: 'V'
      state: "{{ states('sensor.iammeter_voltage_a') }}"
      #availability: "{{ is_number(states('sensor.prelevata_tensione')) }}"
    - name: 'Prelevata Corrente'
      icon: mdi:power-plug-outline
      unit_of_measurement: 'A'
      state: "{{ states('sensor.iammeter_current_a') }}"
      #availability: "{{ is_number(states('sensor.prelevata_corrente')) }}"
    - name: 'Prelevata Potenza A'
      icon: mdi:home-lightning-bolt-outline
      unit_of_measurement: 'W'
      state: "{{ states('sensor.iammeter_power_a') }}"
      #availability: "{{ is_number(states('sensor.prelevata_potenza_a')) }}"
    - name: 'Prelevata Importata A'
      icon: mdi:transmission-tower-import
      unit_of_measurement: 'kWh'
      state: "{{ states('sensor.iammeter_importenergy_a') }}"
      #availability: "{{ is_number(states('sensor.prelevata_importata_a')) }}"
    - name: 'Prelevata Esportata A'
      icon: mdi:transmission-tower-export 
      unit_of_measurement: 'kWh'
      state: "{{ states('sensor.iammeter_exportgrid_a') }}"
      #availability: "{{ is_number(states('sensor.prelevata_esportata_a')) }}"
    - name: 'Prelevata Reattiva A'
      icon: mdi:chart-ppf
      unit_of_measurement: 'VAR'
      state: "{{ states('sensor.iammeter_pf_a') }}"
      #availability: "{{ is_number(states('sensor.prelevata_reattiva_a')) }}"

Ildar_Gabdullin · February 10, 2023, 6:42am

I have plenty of template sensors which may be ~~“None”~~ “unknown” on HA startup.
As a result my log is flooded by these warnings.

tom_l · February 10, 2023, 6:53am

Stop commenting out your availability templates.

Also set appropriate device and state classes.

Ildar_Gabdullin · February 10, 2023, 6:58am

In my case I have device_class & availability specified:

  - sensor:
      - name: xxxxxxxxx
        device_class: battery
        unit_of_measurement: %
        state: >-
          {{ state_attr(....,"battery_level") }}
        availability: >-
          {{ not states(......) in ["unavailable","unknown"] }}

which seem to work perfect - except these warnings on HA startup.

cliccasu · February 10, 2023, 7:13am

this is how i fixed it thanks

template:
  - sensor:
    # SONDA A (PRELEVATA)
    - name: 'Prelevata Tensione'
      icon: mdi:power-plug
      unit_of_measurement: 'V'
      #state: "{{ states('sensor.iammeter_voltage_a') }}"
      state: >
        {% if is_state("sensor.iammeter_voltage_a", "unknown") %}
          0.0
        {% else %}
          {{ states("sensor.iammeter_voltage_a") }}
        {% endif %}

tom_l · February 10, 2023, 7:22am

No, like this:

template:
  - sensor:
    # SONDA A (PRELEVATA)
    - name: 'Prelevata Tensione'
      icon: mdi:power-plug
      unit_of_measurement: 'V'
      state_class: measurement
      device_class: voltage
      state: "{{ states('sensor.iammeter_voltage_a') }}"
      availability: "{{ states('sensor.iammeter_voltage_a')|is_number }}"

However this does beg the question, why are you just copying the state of a sensor in a template?

cliccasu · February 10, 2023, 7:28am

Thanks for the reply.
Because the sensor could change one day and I don’t feel like writing everything.

So I replace with your code that you posted?

Thanks again

tom_l · February 10, 2023, 7:45am

There is absolutely no reason to do this then.

When or if you replace the sensor you simply delete the old sensor and rename the new one’s entity_id to match the old. In one place. Job done.

miwyf · April 12, 2024, 8:14am

There is a relatively new integration method here, but it is through hacs.
Here is the video tutorial: