Set timer

The Set timer action runs your Renson ventilation unit at a chosen ventilation level for a set number of minutes. When the timer ends, the unit returns to its normal program.

This is useful when you want an automation to boost ventilation for a while, for example after a shower or while cooking.

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 fan entity behind that target.

• Entity: one specific fan entity, such as fan.living_room.
• Device: every fan entity that belongs to a device.
• Area: every fan entity in a room or area.
• Floor: every fan entity on a floor.
• Label: every fan 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 a timer 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. Select what you want to control. Under By target (see Targets), select the Renson ventilation unit.
6. From the actions shown for that target, select Renson: Set timer.
7. Select the Level and enter the Time in minutes.
8. 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 renson.set_timer_level. A basic example looks like this:

action: renson.set_timer_level
target:
  entity_id: fan.ventilation
data:
  timer_level: level3
  minutes: 30

This runs the ventilation unit at level 3 for 30 minutes.

Options in YAML

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: Boost ventilation after a shower

This automation runs your ventilation unit at its highest level for 30 minutes whenever the bathroom humidity rises above 70%.

• Trigger: the bathroom humidity goes above 70%
• Action: Renson: Set timer
  • Target: the ventilation unit
  • Level: level4
  • Time: 30

alias: "Boost ventilation after a shower"
triggers:
  - trigger: numeric_state
    entity_id: sensor.bathroom_humidity
    above: 70
actions:
  - action: renson.set_timer_level
    target:
      entity_id: fan.ventilation
    data:
      timer_level: level4
      minutes: 30

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

These actions work well alongside this one:

• Set Breeze: Configures the Breeze function of the Renson ventilation unit.

• Set pollution settings: Configures the pollution settings of the Renson ventilation unit.