Turn on alert

Use this action to undo the acknowledgement of an alert. If the problem the alert warns about is still there, the alert sends notifications again.

The alert changes back to the state on.

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 turn an alert back on 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 Turn on.
6. Select what you want to control. Under By target (see Targets), select the alert. You can also select an area, a device, or a label.
7. Select Save.

Options in the UI

This action has no additional 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 alert.turn_on. A basic example looks like this:

action: alert.turn_on
target:
  entity_id: alert.garage_door

This turns the alert.garage_door alert back on.

Options in YAML

This action has no additional options in YAML.

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 alert entity behind that target.

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

Good to know

• The notifications resume at the next scheduled reminder, not right away.
• If the alert isn’t active, this action has no effect.
• To silence an alert, use Acknowledge alert.

Try it yourself

Ready to test this? Open Settings > 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: turn the alert back on when you leave

You acknowledged the garage door alert while you were home. When you leave, you want reminders again if the door is still open.

• Trigger: Zone
  • Entity with location: You (person.you)
  • Zone: Home
  • Event: Leave
• Action: Turn on
  • Target: Garage door alert

alias: "Turn the garage door alert back on when I leave"
triggers:
  - trigger: zone
    entity_id: person.you
    zone: zone.home
    event: leave
actions:
  - action: alert.turn_on
    target:
      entity_id: alert.garage_door

Automation: turn acknowledged alerts back on at bedtime

If you acknowledged the garage door alert during the day and the door is still open at night, this automation turns the alert back on at 22:00.

• Trigger: Time
  • At time: 22:00
• Condition: State
  • Entity: Garage door alert
  • State: Off
• Action: Turn on
  • Target: Garage door alert

alias: "Turn the garage door alert back on at bedtime"
triggers:
  - trigger: time
    at: "22:00:00"
conditions:
  - condition: state
    entity_id: alert.garage_door
    state: "off"
actions:
  - action: alert.turn_on
    target:
      entity_id: alert.garage_door

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.

Related actions

Explore related actions:

• Acknowledge alert: Acknowledges an alert, so it stops sending notifications.

• Toggle alert: Acknowledges an alert, or removes the acknowledgement if it’s already acknowledged.