# Everyday controls

> Change temperature, mode, fan speed and vane direction, and verify the indoor unit follows your Serin Controller.

Source: https://serin-labs.com/controller/everyday-use.html
Last updated: 2026-10-27

Control the unit from your smart-home app, the [web interface](https://serin-labs.com/controller/web-interface.html) or a paired Serin Link.

## Set the mode and temperature

Choose a supported mode and target temperature in your app's thermostat. On HomeKit-compatible and Matter-compatible firmware, use **Climate** in the web interface. Choose **Off** to stop heating or cooling.

The web interface provides modes beyond some app thermostat cards. Use it if Dry or Fan-only is absent from your app. Auto mode and separate heating/cooling targets depend on the firmware and configuration; see [controls and entities](https://serin-labs.com/controller/controls.html).

Home Assistant's climate entity provides the enabled modes, target temperature and fan setting. A custom configuration can add separate heat and cool targets for Auto mode.

![Climate section showing mode and target temperature beside the measured room temperature](https://serin-labs.com/assets/media/webui-climate.png)

Climate controls in the HomeKit-compatible web interface.

## Adjust fan speed and vane direction

Open **Airflow** in the web interface. Select an available fan speed or vane position. Apple Home has no vane controls; Matter app thermostat cards may omit fan and vane controls too.

Use the climate entity for fan speed and the vertical/horizontal vane entities for direction. The entities present depend on the configuration.

Use [indoor-unit settings](https://serin-labs.com/controller/unit-settings.html) to hide controls your hardware does not support.

## Use the handheld remote or another control

Changes made with the handheld remote appear on the controller. If settings keep changing, check other apps, Serin Link and automations for later commands.

See [Serin Link controls](https://serin-labs.com/link/controls.html) for knob gestures.

## Check the result

If the indoor unit ignores commands, follow [the CN105 control checks](https://serin-labs.com/troubleshooting.html#hvac-no-response).