Set ViCare mode

The Set ViCare mode action sets the mode of the climate device as defined by Viessmann.

This gives you more fine-grained control of the heating modes than the standard climate.set_hvac_mode action, because it exposes the Viessmann operation modes directly.

Targets of the action

This action requires a target. The target is the object of the action. You can point the action at a single entityAn entity represents a sensor, actor, or function in Home Assistant. Entities are used to monitor physical properties or to control other entities. An entity is usually part of a device or a service. [Learn more], a device, an area, a floor, or a label, and Home Assistant will run the action on every matching climate entity behind that target.

• Entity: one specific climate entity, such as climate.living_room.
• Device: every climate entity that belongs to a device.
• Area: every climate entity in a room or area.
• Floor: every climate entity on a floor.
• Label: every climate entity that shares a label.

You can also select different target types in one action. For example, you can add a specific entity and an area as targets in the same action to run the action on both of them at once.

Using this action from the user interface

If you prefer building automations and scripts visually, Home Assistant walks you through this action step by step. You pick what to target, tweak a few options, and save. No YAML knowledge required.

To set the ViCare mode from an automation or a script:

1. Go to Settings > Automations & scenes.
2. Open an existing automation or script, or select Create automation > Create new automation.
3. If you’re setting up a new automation, add a trigger in the When section. Scripts don’t need a trigger. They run when something else calls them.
4. In the Then do section, select Add action.
5. From the search box, search for and select Viessmann ViCare: Set ViCare mode.
6. Select the climate entity as the target, then enter the ViCare mode.
7. Select Save.

Options in the UI

Using this action in YAML

If you work directly in YAML, or you want to know exactly what Home Assistant does under the hood, this section has the technical reference. It lists the field names you use in YAML, their types, and which ones are required.

In YAML, refer to this action as vicare.set_vicare_mode. A basic example looks like this:

action: vicare.set_vicare_mode
target:
  entity_id: climate.living_room
data:
  vicare_mode: heating

This sets the selected climate device to the heating mode.

Options in YAML

Good to know

The available modes depend on your specific Viessmann device. Always check the vicare_modes attribute of the climate entity for the values it accepts.

For a mapping of the standard Home Assistant climate modes to Viessmann operation modes, see setting the HVAC mode on the integration page.

Try it yourself

Ready to test this? Open Developer tools > Actions, search for this action, fill in the fields, and select Perform action. You see what happens on your actual entitiesAn entity represents a sensor, actor, or function in Home Assistant. Entities are used to monitor physical properties or to control other entities. An entity is usually part of a device or a service. [Learn more] without writing a line of YAML.

More examples

Real scenarios where this action shows up in automations and scripts. Copy any example and adapt it to your setup.

Automation: Switch to reduced heating at night

This automation sets your Viessmann device to a reduced heating mode every night, then you can pair it with a second automation in the morning to return to your normal mode.

• Trigger: the time is 11:00 PM
• Action: set the ViCare mode
  • Target: the living room climate entity
  • ViCare mode: heating

alias: "Reduced heating at night"
triggers:
  - trigger: time
    at: "23:00:00"
actions:
  - action: vicare.set_vicare_mode
    target:
      entity_id: climate.living_room
    data:
      vicare_mode: heating

Still stuck?

The Home Assistant community is quick to help: join Discord for real-time chat, post on the community forum with the action you’re calling and what you expected to happen, or share on our subreddit /r/homeassistant.