Hi, I have a helper set as Arithmetic mean of two sensors.
It is almost always wrong.
As of right now, Entity 1 is 23.9C, Entity 2 is 29.6, yet the mean is… 29.6.
The original entities are set correctly. Restart didn’t help. HA 2024.7.4, nothing related in log.
Wth? Any ideas? Thanks.
Which helper are you using?
“Combine the state of several input sensors” with Arithmetic mean preset.
So the Min/Max helper.
There are no open issues:
I just created a test sensor.
Temp Sensor 1: 18.4°C
Temp Sensor 2: 18.1°C
Mean from helper: 18.25°C
So it is working as expected for me.
Do both your source sensors have the exact same unit of measurement?
Look very closely at the ° symbol. There are a number of similar symbols that will prevent your sensors being combined.
No Min/max helper in my install (HAOS VM on Proxmox, everything up to date). Yes, both are °C, with one decimal.
Thanks!
Please post the output of Settings → System → Repairs → ⋮ (top right) → System Information
| version | core-2024.7.4 |
|---|---|
| installation_type | Home Assistant OS |
| dev | false |
| hassio | true |
| docker | true |
| user | root |
| virtualenv | false |
| python_version | 3.12.4 |
| os_name | Linux |
| os_version | 6.6.33-haos |
| arch | x86_64 |
| timezone | Europe/Prague |
| config_dir | /config |
| GitHub API | ok |
|---|---|
| GitHub Content | ok |
| GitHub Web | ok |
| GitHub API Calls Remaining | 5000 |
| Installed Version | 1.34.0 |
| Stage | running |
| Available Repositories | 1396 |
| Downloaded Repositories | 63 |
| HACS Data | ok |
| logged_in | true |
|---|---|
| subscription_expiration | August 18, 2024 at 02:00 |
| relayer_connected | true |
| relayer_region | eu-central-1 |
| remote_enabled | true |
| remote_connected | true |
| alexa_enabled | true |
| google_enabled | false |
| remote_server | eu-central-1-2.ui.nabu.casa |
| certificate_status | ready |
| instance_id | a6ad286ce20544a5ada8094149250224 |
| can_reach_cert_server | ok |
| can_reach_cloud_auth | ok |
| can_reach_cloud | ok |
| host_os | Home Assistant OS 12.4 |
|---|---|
| update_channel | beta |
| supervisor_version | supervisor-2024.07.0 |
| agent_version | 1.6.0 |
| docker_version | 26.1.4 |
| disk_total | 34.7 GB |
| disk_used | 13.4 GB |
| healthy | true |
| supported | true |
| host_connectivity | true |
| supervisor_connectivity | true |
| ntp_synchronized | true |
| virtualization | kvm |
| board | ova |
| supervisor_api | ok |
| version_api | ok |
| installed_addons | MariaDB (2.7.1), Mosquitto broker (6.4.1), Terminal & SSH (9.14.0), ESPHome (2024.7.2), Home Assistant Google Drive Backup (0.112.1), Tailscale (0.21.0), Zigbee2MQTT (1.39.0-1), File editor (5.8.0), Auto Guest Login (1.4.0), Filebrowser (2.23.0_14), Qbittorrent (4.6.2_43), ZigStar TI CC2652P/P7 FW Flasher (0.4.0), Samba Backup (5.2.0), Vaultwarden (Bitwarden) (0.22.0), Mealie (v1.10.2), Zigbee2MQTT Edge (edge), InfluxDB (5.0.0), Grafana (10.0.0) |
| dashboards | 1 |
|---|---|
| resources | 37 |
| views | 7 |
| mode | storage |
| can_reach_server | ok |
|---|
| oldest_recorder_run | June 27, 2024 at 10:23 |
|---|---|
| current_recorder_run | July 30, 2024 at 20:07 |
| estimated_db_size | 1613.62 MiB |
| database_engine | mysql |
| database_version | 10.11.6 |
| api_endpoint_reachable | ok |
|---|
Sorry, typical user error, I changed weather provider and didn’t update the helper for new entity. It would be nice if there was like a red badge or an exclamation mark in the helper setup UI if the entity is invalid.
Sorry for wasting your time.
The differently named Min/max helper type is weird though 
Look into the Spook integration.
It has a bit of that functionality.
Spook does warn about invalid entities in scripts and things like that but it didn’t catch this one. Thanks!
I think I just worked out why our helpers are named differently too.
I use the min/max integration in YAML. That probably has something to do with it.
sensor:
- platform: min_max
unique_id: ff0dc72e-c9c0-4b95-8fc2-f6d7b2d57009
type: mean
round_digits: 0
name: Average Upstairs Humidity
entity_ids:
- sensor.bathroom_humidity
- sensor.ensuite_humidity
- sensor.dining_room_humidity
- sensor.lounge_room_humidity
- sensor.master_bedroom_humidity
- sensor.spare_bedroom_humidity
It’s the same underlying helper though as you only use the UI yours is called “Combine the state…etc”.
Good. I gave some average sensors in YAML as well.
All is well, thank you guys!