HVAC not switching off on low temperatures

[Christian-Thiem]

Prerequisites

• [X] Model name of your Devices Mitsubishi SEZ-M25DA via melcloud integration
• [X] Output from Home Assistant Developer Tools state e.g.

  hvac_modes: heat, off
  min_temp: 10
  max_temp: 28
  friendly_name: Klima Thermostat
  supported_features: 1
  target_temp_step: 1
  current_temperature: 13.9
  temperature: 10
  hvac_action: idle
  window_open: false
  call_for_heat: true
  last_change: 2024-01-08T21:14:02.177795
  humidity: 32.8
  main_mode: heat
  tolerance: 0
  heating_power: 0.01
  errors: []
  batteries: {"sensor.shelly_htplus_1_temperature": {"battery": "93", "battery_id": "sensor.shelly_htplus_1_battery"}, "sensor.shelly_htplus_1_humidity": {"battery": "93", "battery_id": "sensor.shelly_htplus_1_battery"}

  hvac_modes: off, heat, dry, cool, fan_only, heat_cool
  min_temp: 10
  max_temp: 28
  target_temp_step: 1
  fan_modes: auto, 1, 2, 3
  swing_modes: auto, 1_up, 2, 3, 4, 5_down
  current_temperature: 8
  temperature: 10
  fan_mode: auto
  swing_mode: auto
  vane_horizontal: auto
  vane_horizontal_positions: auto, 1_left, 2, 3, 4, 5_right, split
  vane_vertical: auto
  vane_vertical_positions: auto, 1_up, 2, 3, 4, 5_down
  friendly_name: Schlafzimmer
  supported_features: 41

• [X] Output from Home Assistant Device Diagnostic from BT

{
{
  "home_assistant": {
    "installation_type": "Home Assistant Supervised",
    "version": "2024.1.2",
    "dev": false,
    "hassio": true,
    "virtualenv": false,
    "python_version": "3.11.6",
    "docker": true,
    "arch": "aarch64",
    "timezone": "Europe/Berlin",
    "os_name": "Linux",
    "os_version": "5.4.180",
    "supervisor": "2023.12.0",
    "host_os": "Debian GNU/Linux 11 (bullseye)",
    "docker_version": "24.0.5",
    "chassis": "",
    "run_as_root": true
  },
  "custom_components": {
    "growatt_server_api": {
      "version": "1.0.4",
      "requirements": [
        "growattServer==1.3.0"
      ]
    },
    "better_thermostat": {
      "version": "1.5.0-beta4",
      "requirements": []
    },
    "tuya_local": {
      "version": "2023.12.2",
      "requirements": [
        "tinytuya==1.13.1"
      ]
    },
    "hacs": {
      "version": "1.33.0",
      "requirements": [
        "aiogithubapi>=22.10.1"
      ]
    },
    "samsungtv_smart": {
      "version": "0.13.3",
      "requirements": [
        "websocket-client!=1.4.0,>=0.58.0",
        "wakeonlan>=2.0.0",
        "aiofiles>=0.8.0",
        "casttube>=0.2.1"
      ]
    }
  },
  "integration_manifest": {
    "domain": "fritz",
    "name": "AVM FRITZ!Box Tools",
    "codeowners": [
      "@mammuth",
      "@AaronDavidSchneider",
      "@chemelli74",
      "@mib1185"
    ],
    "config_flow": true,
    "dependencies": [
      "network"
    ],
    "documentation": "https://www.home-assistant.io/integrations/fritz",
    "iot_class": "local_polling",
    "loggers": [
      "fritzconnection"
    ],
    "requirements": [
      "fritzconnection[qr]==1.13.2",
      "xmltodict==0.13.0"
    ],
    "ssdp": [
      {
        "st": "urn:schemas-upnp-org:device:fritzbox:1"
      }
    ],
    "is_built_in": true
  },
  "data": {
    "entry": {
      "entry_id": "4ff21c51ad29d87765fd94e039552578",
      "version": 1,
      "minor_version": 1,
      "domain": "fritz",
      "title": "FRITZ!Box 6850 LTE",
      "data": {
        "host": "192.168.178.1",
        "password": "**REDACTED**",
        "port": 49000,
        "username": "**REDACTED**"
      },
      "options": {
        "consider_home": 180.0,
        "old_discovery": false
      },
      "pref_disable_new_entities": false,
      "pref_disable_polling": false,
      "source": "ssdp",
      "unique_id": "123402409-bccb-40e7-8e6c-485D35776349",
      "disabled_by": null
    },
    "device_info": {
      "model": "FRITZ!Box 6850 LTE",
      "unique_id": "485D35XX:XX9",
      "current_firmware": "7.57",
      "latest_firmware": "",
      "update_available": false,
      "connection_type": "WANIPConnection",
      "is_router": true,
      "mesh_role": "master",
      "last_update success": true,
      "last_exception": null,
      "discovered_services": [
        "any1",
        "WANCommonIFC1",
        "WANDSLLinkC1",
        "WANIPConn1",
        "WANIPv6Firewall1",
        "DeviceInfo1",
        "DeviceConfig1",
        "Layer3Forwarding1",
        "LANConfigSecurity1",
        "ManagementServer1",
        "Time1",
        "UserInterface1",
        "X_AVM-DE_Storage1",
        "X_AVM-DE_WebDAVClient1",
        "X_AVM-DE_UPnP1",
        "X_AVM-DE_Speedtest1",
        "X_AVM-DE_RemoteAccess1",
        "X_AVM-DE_MyFritz1",
        "X_VoIP1",
        "X_AVM-DE_OnTel1",
        "X_AVM-DE_Dect1",
        "X_AVM-DE_TAM1",
        "X_AVM-DE_AppSetup1",
        "X_AVM-DE_Homeauto1",
        "X_AVM-DE_Homeplug1",
        "X_AVM-DE_Filelinks1",
        "X_AVM-DE_Auth1",
        "X_AVM-DE_HostFilter1",
        "X_AVM-DE_USPController1",
        "WLANConfiguration1",
        "WLANConfiguration2",
        "WLANConfiguration3",
        "Hosts1",
        "LANEthernetInterfaceConfig1",
        "LANHostConfigManagement1",
        "WANCommonInterfaceConfig1",
        "WANDSLInterfaceConfig1",
        "X_AVM-DE_WANMobileConnection1",
        "WANDSLLinkConfig1",
        "WANEthernetLinkConfig1",
        "WANPPPConnection1",
        "WANIPConnection1"
      ],
      "client_devices": [
        {
          "connected_to": "fritz.box",
          "connection_type": "LAN",
          "hostname": "Khadas",
          "is_connected": true,
          "last_activity": "2024-01-08T22:31:59.699226+00:00",
          "wan_access": true
        },
        {
          "connected_to": "fritz.box",
          "connection_type": "WLAN",
          "hostname": "shellyplus1-441793d5cbe4",
          "is_connected": true,
          "last_activity": "2024-01-08T22:31:59.699267+00:00",
          "wan_access": true
        },
        {
          "connected_to": "fritz.box",
          "connection_type": "WLAN",
          "hostname": "ESP-15582B",
          "is_connected": true,
          "last_activity": "2024-01-08T22:31:59.699287+00:00",
          "wan_access": true
        },
        {
          "connected_to": "fritz.box",
          "connection_type": "WLAN",
          "hostname": "ESP-15C709",
          "is_connected": true,
          "last_activity": "2024-01-08T22:31:59.699307+00:00",
          "wan_access": true
        },
        {
          "connected_to": "fritz.box",
          "connection_type": "WLAN",
          "hostname": "ESP-F450F7",
          "is_connected": true,
          "last_activity": "2024-01-08T22:31:59.699326+00:00",
          "wan_access": true
        },
        {
          "connected_to": "",
          "connection_type": "",
          "hostname": "SonosZP",
          "is_connected": false,
          "last_activity": null,
          "wan_access": true
        },
        {
          "connected_to": "fritz.box",
          "connection_type": "WLAN",
          "hostname": "shellyplus1-0cdc7ef6fba4",
          "is_connected": true,
          "last_activity": "2024-01-08T22:31:59.699360+00:00",
          "wan_access": true
        },
        {
          "connected_to": "fritz.box",
          "connection_type": "WLAN",
          "hostname": "shellyplusi4-d4d4da7e3d20",
          "is_connected": true,
          "last_activity": "2024-01-08T22:31:59.699379+00:00",
          "wan_access": true
        },
        {
          "connected_to": "fritz.box",
          "connection_type": "WLAN",
          "hostname": "shellyplus1-441793d65668",
          "is_connected": true,
          "last_activity": "2024-01-08T22:31:59.699398+00:00",
          "wan_access": true
        },
        {
          "connected_to": "fritz.box",
          "connection_type": "WLAN",
          "hostname": "PC-E8-C7-CF-1F-BC-67",
          "is_connected": true,
          "last_activity": "2024-01-08T22:31:59.699418+00:00",
          "wan_access": true
        },
        {
          "connected_to": "fritz.box",
          "connection_type": "WLAN",
          "hostname": "shellyplug-s-4022D88E2D49",
          "is_connected": true,
          "last_activity": "2024-01-08T22:31:59.699437+00:00",
          "wan_access": true
        },
        {
          "connected_to": "fritz.box",
          "connection_type": "WLAN",
          "hostname": "shellyrgbw2-349454956F07",
          "is_connected": true,
          "last_activity": "2024-01-08T22:31:59.699457+00:00",
          "wan_access": true
        },
        {
          "connected_to": "fritz.box",
          "connection_type": "WLAN",
          "hostname": "shellyrgbw2-349454956960",
          "is_connected": true,
          "last_activity": "2024-01-08T22:31:59.699475+00:00",
          "wan_access": true
        },
        {
          "connected_to": "fritz.box",
          "connection_type": "WLAN",
          "hostname": "shellyrgbw2-349454956B84",
          "is_connected": true,
          "last_activity": "2024-01-08T22:31:59.699494+00:00",
          "wan_access": true
        },
        {
          "connected_to": "fritz.box",
          "connection_type": "WLAN",
          "hostname": "shellyrgbw2-349454956D2F",
          "is_connected": true,
          "last_activity": "2024-01-08T22:31:59.699514+00:00",
          "wan_access": true
        },
        {
          "connected_to": "fritz.box",
          "connection_type": "WLAN",
          "hostname": "ws-gateway",
          "is_connected": true,
          "last_activity": "2024-01-08T22:31:59.699534+00:00",
          "wan_access": true
        },
        {
          "connected_to": "fritz.box",
          "connection_type": "WLAN",
          "hostname": "PC-D8-1F-12-FF-6B-E7",
          "is_connected": true,
          "last_activity": "2024-01-08T22:31:59.699553+00:00",
          "wan_access": true
        },
        {
          "connected_to": "",
          "connection_type": "",
          "hostname": "iPhone-von-Christian",
          "is_connected": false,
          "last_activity": null,
          "wan_access": true
        },
        {
          "connected_to": "",
          "connection_type": "",
          "hostname": "PC-5A-A3-A5-AB-65-91",
          "is_connected": false,
          "last_activity": null,
          "wan_access": true
        },
        {
          "connected_to": "",
          "connection_type": "",
          "hostname": "MBPvonCstian600",
          "is_connected": false,
          "last_activity": null,
          "wan_access": true
        },
        {
          "connected_to": "fritz.box",
          "connection_type": "WLAN",
          "hostname": "linux",
          "is_connected": true,
          "last_activity": "2024-01-08T22:31:59.699615+00:00",
          "wan_access": true
        },
        {
          "connected_to": "fritz.box",
          "connection_type": "WLAN",
          "hostname": "PC-DC-97-58-37-A1-7C",
          "is_connected": true,
          "last_activity": "2024-01-08T22:31:59.699634+00:00",
          "wan_access": true
        },
        {
          "connected_to": "fritz.box",
          "connection_type": "WLAN",
          "hostname": "PC-DC-97-58-35-A3-F1",
          "is_connected": true,
          "last_activity": "2024-01-08T22:31:59.699654+00:00",
          "wan_access": true
        },
        {
          "connected_to": "fritz.box",
          "connection_type": "WLAN",
          "hostname": "PC-DC-97-58-30-28-0B",
          "is_connected": true,
          "last_activity": "2024-01-08T22:31:59.699672+00:00",
          "wan_access": true
        },
        {
          "connected_to": "",
          "connection_type": "",
          "hostname": "solar-inverter",
          "is_connected": false,
          "last_activity": null,
          "wan_access": true
        },
        {
          "connected_to": "",
          "connection_type": "",
          "hostname": "shellyflood-C8C9A315EC02",
          "is_connected": false,
          "last_activity": "2024-01-08T22:09:59.680487+00:00",
          "wan_access": true
        },
        {
          "connected_to": "",
          "connection_type": "",
          "hostname": "shellyplusht-08b61fcd029c",
          "is_connected": false,
          "last_activity": null,
          "wan_access": true
        },
        {
          "connected_to": "",
          "connection_type": "",
          "hostname": "S22-Ultra-von-Michael",
          "is_connected": false,
          "last_activity": null,
          "wan_access": true
        },
        {
          "connected_to": "",
          "connection_type": "",
          "hostname": "S22-Ultra-von-Michael",
          "is_connected": false,
          "last_activity": null,
          "wan_access": true
        },
        {
          "connected_to": "",
          "connection_type": "",
          "hostname": "Z-Flip3-von-Gesche",
          "is_connected": false,
          "last_activity": null,
          "wan_access": true
        },
        {
          "connected_to": "",
          "connection_type": "",
          "hostname": "Samsung",
          "is_connected": false,
          "last_activity": null,
          "wan_access": true
        },
        {
          "connected_to": "",
          "connection_type": "",
          "hostname": "none",
          "is_connected": false,
          "last_activity": null,
          "wan_access": true
        },
        {
          "connected_to": "",
          "connection_type": "",
          "hostname": "PC-E2-71-7E-D0-B7-98",
          "is_connected": false,
          "last_activity": null,
          "wan_access": true
        },
        {
          "connected_to": "fritz.box",
          "connection_type": "WLAN",
          "hostname": "Schlafzimmer-TV",
          "is_connected": true,
          "last_activity": "2024-01-08T22:31:59.699816+00:00",
          "wan_access": true
        },
        {
          "connected_to": "",
          "connection_type": "",
          "hostname": "Galaxy-S20",
          "is_connected": false,
          "last_activity": null,
          "wan_access": true
        },
        {
          "connected_to": "",
          "connection_type": "",
          "hostname": "PC-0E-0B-0B-05-57-E3",
          "is_connected": false,
          "last_activity": null,
          "wan_access": true
        },
        {
          "connected_to": "",
          "connection_type": "",
          "hostname": "Gnaag-Mobil",
          "is_connected": false,
          "last_activity": null,
          "wan_access": true
        },
        {
          "connected_to": "fritz.box",
          "connection_type": "WLAN",
          "hostname": "PC-192-168-178-63",
          "is_connected": true,
          "last_activity": "2024-01-08T22:31:59.699876+00:00",
          "wan_access": true
        },
        {
          "connected_to": "",
          "connection_type": "",
          "hostname": "PC-6A-49-1A-75-E8-0F",
          "is_connected": false,
          "last_activity": null,
          "wan_access": true
        }
      ],
      "wan_link_properties": {
        "NewWANAccessType": "X_AVM-DE_Mobile",
        "NewLayer1UpstreamMaxBitRate": 0,
        "NewLayer1DownstreamMaxBitRate": 0,
        "NewPhysicalLinkStatus": "Up",
        "NewX_AVM-DE_DownstreamCurrentUtilization": "656,2866,81,79,325,26,110,363,86,26,111,133,4427,5241,81,26,44039,138,928,196",
        "NewX_AVM-DE_UpstreamCurrentUtilization": "3196,845,101,147,1663,60,179,544,206,81,640,255,1970,1520,103,151,2656,543,819,188",
        "NewX_AVM-DE_DownstreamCurrentMaxSpeed": 44039,
        "NewX_AVM-DE_UpstreamCurrentMaxSpeed": 3196
      }
    }
  }
}
}

Description

When thermostat is set to lowest setting (10°C) and the set temperature is reached, the climate system is not turned off, but remains in heating mode, consequantially overheating the room.

Steps to Reproduce

1. Add Melcloud based device to better thermostat
2. Set device to lowest setting
3. Wait until system starts to heat

Expected behavior:

After desired delta is reached, the device should be switched off

Actual behavior:

The device is never turned off, overheating the room

Versions

HA 2024.1.2 BT 1.5.0 beta4 but also tested with 1.4.0

Additional Information

BT

Melcloud

[b1ggi]

Its not a specific problem to Mitsubishi or MEL cloud i guess, my Panasonic HVAC also does this. I switched from Panasonic cloud to a local DIY esphome adapter, but the behaviour is still the same. HVAC have a tendency to ocasionally heat even below target temp. Maybe its fixed by setting the target temp really low, to stop it from heating under target temp.