Turn off air conditioner lights

A very simple automation issue, but the SmartThings integration can't solve it, is turning off the air conditioner lights. Even accessing this function directly on the unit doesn't work, and the same goes for automation.

alias: Turn off the air conditioner lights after 2 minutes.
triggers:
  - trigger: state
    entity_id:
      - switch.escritorio_display_lighting
      - switch.quartinho_display_lighting
      - switch.quarto_de_visita_display_lighting
      - switch.suite_master_display_lighting
    to: "on"
    for:
      minutes: 2
actions:
  - action: switch.turn_off
    target:
      entity_id: "{{ trigger.entity_id }}"
mode: parallel

Your automation looks fine, but if the integration doesn't pass this (when the respective switches are toggled) or if your unit doesn't support the command, then the automation won't do anything. Have you checked the HA logs for errors?

The log of the switch.turn_off action

In the most recent execution, the action trace was this:
action/0 → switch.turn_off
params:

domain: switch
service: turn_off
service_data: {}
target.entity_id: ["switch.suite_master_display_lighting"]
running_script: false
script_execution: "finished" (no error)

Now I'm going to send the switch.turn_off directly to the display. With wait active, the state remains on, and the last_changed remains at 00:47:03 (the same as before the command). The manual switch.turn_off, called directly on the entity (without any automation involved), did absolutely nothing.

The debug log captured the full conversation with the cloud:

Executing command for device 260c4525-...: 
capability: samsungce.airConditionerLighting 
command: setLightingLevel 
arguments: ['off']

Command response: {"results":[{"id":"...","status":"COMPLETED"}]}

Are you sure your AC supports this feature? It looks like your going via some Samsung cloud service. Either they're not forwarding that command to the AC, or they are, but the AC is ignoring it (if unsupported).

I'm using the integration with Samsung Smart Things; I can do this through the Samsung app.

Through Home Assistant, I can turn it on, turn it off, set the temperature, everything works except turning off the light.

Cap 2026-06-16 at 23.20.36

MISSING DEVICE FUNCTIONALITY

The SmartThings integration does not support all SmartThings capabilities. Only the capabilities listed in this documentation are supported. If a feature of your device is not available in Home Assistant, there are a few possible reasons:

  1. To see which capabilities are currently implemented, check the supported functionality section.
  • The capability you are looking for might not yet be supported by this integration.
  1. To see if the necessary capability is available for your device in the API, check the SmartThings Developer Portal.
  • Some device features are only available in the SmartThings app and are not exposed through the API.
  1. If the capability is available in the SmartThings API but not yet supported by this integration, you can request support by creating a GitHub Discussion.
  • Do not create a GitHub Issue for feature requests, as issues are intended for bug reports.
  • When creating a feature request, attach the device diagnostics for the device that is missing functionality. This helps identify which capabilities your device exposes and speeds up the implementation.