BT keeps temperature at ~20.5°C, regardless of set temperature or on/off state of BT

[lucaperl]

Prerequisites

• [x] Model name of your Devices: TuYa TS0601
• [x] Output from Home Assistant Developer Tools state e.g.
• [x] Output from Home Assistant Device Diagnostic from BT

Developer Tools state

```yaml hvac_modes: - heat - "off" min_temp: 5 max_temp: 35 target_temp_step: 0.5 current_temperature: 19.7 temperature: 17.5 hvac_action: idle window_open: false call_for_heat: true last_change: "2023-12-27T14:53:40.053773" saved_temperature: null humidity: 56.1 main_mode: heat tolerance: 0 heating_power: 0.01 errors: "[]" batteries: >- {"sensor.temperatursensor_buero_temperature": {"battery": "100", "battery_id": "sensor.temperatursensor_buero_battery"}, "sensor.temperatursensor_buero_humidity": {"battery": "100", "battery_id": "sensor.temperatursensor_buero_battery"}, "binary_sensor.fenstersensor_buero_tuer_contact": {"battery": "off", "battery_id": "binary_sensor.fenstersensor_buero_tuer_battery_low"}, "climate.thermostat_buero": {"battery": "off", "battery_id": "binary_sensor.thermostat_buero_battery_low"}} friendly_name: Heizung Buero supported_features: 1 ```

Device Diagnostics

```json { "home_assistant": { "installation_type": "Home Assistant OS", "version": "2023.12.4", "dev": false, "hassio": true, "virtualenv": false, "python_version": "3.11.6", "docker": true, "arch": "x86_64", "timezone": "Europe/Berlin", "os_name": "Linux", "os_version": "6.1.63-haos", "supervisor": "2023.12.0", "host_os": "Home Assistant OS 11.2", "docker_version": "24.0.7", "chassis": "vm", "run_as_root": true }, "custom_components": { "linkplay": { "version": "3.1.8", "requirements": [ "async-upnp-client>=0.27", "validators~=0.12", "chardet>=4.0.0" ] }, "better_thermostat": { "version": "1.4.0", "requirements": [] }, "hacs": { "version": "1.33.0", "requirements": [ "aiogithubapi>=22.10.1" ] }, "dwd_pollenflug": { "version": "1.0.2", "requirements": [ "pytz" ] } }, "integration_manifest": { "domain": "better_thermostat", "name": "Better Thermostat", "after_dependencies": [ "climate" ], "codeowners": [ "@kartoffeltoby" ], "config_flow": true, "dependencies": [ "climate", "recorder" ], "documentation": "https://github.com/KartoffelToby/better_thermostat", "iot_class": "local_push", "issue_tracker": "https://github.com/KartoffelToby/better_thermostat/issues", "requirements": [], "version": "1.4.0", "is_built_in": false }, "data": { "info": { "name": "Heizung Buero", "temperature_sensor": "sensor.temperatursensor_buero_temperature", "off_temperature": 17, "tolerance": 0.0, "humidity_sensor": "sensor.temperatursensor_buero_humidity", "outdoor_sensor": "sensor.temperatursensor_draussen_temperature", "window_sensors": "binary_sensor.fenstersensor_buero_tuer_contact", "weather": "weather.forecast_home", "window_off_delay": 10, "window_off_delay_after": 60, "cooler": null, "model": "TS0601_thermostat" }, "thermostat": { "climate.thermostat_buero": { "name": "Thermostat Buero", "state": "auto", "attributes": { "hvac_modes": [ "heat", "auto", "off" ], "min_temp": 5.0, "max_temp": 35.0, "target_temp_step": 0.5, "preset_modes": [ "none", "schedule", "manual", "boost", "complex", "comfort", "eco", "away" ], "current_temperature": 29.5, "temperature": 5.5, "hvac_action": "idle", "preset_mode": "manual", "friendly_name": "Thermostat Buero", "supported_features": 17 }, "bt_config": { "calibration": "target_temp_based", "calibration_mode": "heating_power_calibration", "protect_overheating": true, "no_off_system_mode": false, "heat_auto_swapped": true, "valve_maintenance": false, "child_lock": true, "homaticip": false }, "bt_adapter": "mqtt", "bt_integration": "mqtt", "model": "TS0601_thermostat" } }, "external_temperature_sensor": { "entity_id": "sensor.temperatursensor_buero_temperature", "state": "19.7", "attributes": { "state_class": "measurement", "unit_of_measurement": "\u00b0C", "device_class": "temperature", "friendly_name": "Temperatursensor Buero Temperatur" }, "last_changed": "2023-12-27T15:20:03.291774+00:00", "last_updated": "2023-12-27T15:20:03.291774+00:00", "context": { "id": "01HJNXRZEVRSX519T89Z77QFBW", "parent_id": null, "user_id": null } }, "window_sensor": { "entity_id": "binary_sensor.fenstersensor_buero_tuer_contact", "state": "off", "attributes": { "device_class": "door", "friendly_name": "Fenstersensor Buero Tuer T\u00fcr" }, "last_changed": "2023-12-27T13:37:22.348635+00:00", "last_updated": "2023-12-27T13:37:22.348635+00:00", "context": { "id": "01HJNQWYXC4D2BR354SNXVYDY7", "parent_id": null, "user_id": null } } } } ```

Description

I have 5 TuYa TS0601 thermostats in 4 rooms. Last year after some trial and error they worked flawlessly with these settings:

This year, after deleting and re-adding the BT integrations, I cannot get them to function properly. BT is connected with the TRVs and it seems to control them, but somehow they are always keeping the temperature at ~20.5°C. Here is an example of the last 3 days where I've been away and had them set to 17,5 (the dip is me opening the windows to let fresh air in. after that, I have not been in the house):

BT-graph:

TRV graph:

As you can see, the BT graph does not show heating, but somehow it changes the target temperature of the TRV to keep the temperature at 20°.

Expected behavior:

Keep temperature at the desired level or keep the valve closed when BT is turned off.

Actual behavior:

Irregardless of the temperature setting it keeps the room at 20.5°. Even if BT is turned off.

Versions

HA: 2023.12.4 BT: 1.4.0

Additional Information

Things I have tried that did not fix it:

• delete and re-add the BT integrations multiple times.
• change the calibration to offset-based.
• turn off the "swap heat/auto" option
• changing the "comfort temperature" setting in the TRV to 15°C

Did anyone encounter this? Is it a bug or am I messing something up? Where does it even take the 20.5 from? There is no value in Z2M or BT that is set to 20.5.

[toabi]

Ah. I have the same issue where it keeps the temperature constantly between 19.5 and 20…

[toabi]

I removed the weather sensor from that BT device… and that seems to have fixed it?