STEP 1
Download the Onecta app
Search for Daikin Onecta in the App Store on an iPhone, or Google Play on Android. Check it is made by Daikin Europe, then install it.
How to set up the Daikin Onecta app for every room in your home, switch rooms on and off, choose heating or cooling, set schedules and see how much energy you use. Written for homes with one outdoor unit serving several rooms.
Free from the App Store and Google Play, made by Daikin. It lets you control each room from your phone, at home or while you are out.
Onecta replaced the older Daikin Residential Controller and Daikin Online Controller apps. If you used one of those, add your rooms again in Onecta.
Each room has its own indoor unit on the wall, and they are all fed by one outdoor unit. In the app, every room is added and controlled on its own.
Because the rooms share one outdoor unit, they need to agree on heating or cooling. Part 04 explains this.
You only do this once. Set up one room first, then repeat for the others.
Search for Daikin Onecta in the App Store on an iPhone, or Google Play on Android. Check it is made by Daikin Europe, then install it.
Open the app and choose to create a Daikin ID account. Enter your email address and choose a password, then confirm your email when Daikin sends you a message. Log in to the app.
Whoever creates the account is the owner. The owner can share the system with the rest of the family later (step 14).
Each unit has a label printed with its Wi-Fi name, shown as SSID, and its KEY. You may find it under the front panel, which lifts up from the bottom edge. Take a photo of the label for each room so you have it to hand.
Stand in the room with the unit. In the app tap +, then Add a device, then Detect a wireless device. Choose your type of unit. If you can't see it, choose Other.
When the app asks how to connect, choose SSID & Key.
The app shows you how to put the unit into set-up mode. Follow its steps exactly, as they differ between models. Set-up mode only lasts 3 minutes, so have the app ready first and stay close to the unit.
Your phone then joins the unit's own Wi-Fi, called daikin-ap. If your phone says it has no internet, choose to stay connected.
The app lists the Wi-Fi networks the unit can see. Choose your home network, type in your Wi-Fi password and finish. The unit now connects to your router.
Give the room a name you'll recognise, such as Main bedroom or Lounge.
Go to the next room and repeat steps 4 to 6, one room at a time, until every unit in the house is in the app.
All your rooms then show on the app's home screen, each with its own controls.
Tap a room on the home screen to open its controls.
Tap the power button to switch the room on or off. Use the dial, or + and -, to set the temperature you want the room to be.
Most people are comfortable at 20 to 22°C for heating and 23 to 25°C for cooling. Each degree lower in summer, or higher in winter, uses more energy.
Pick what you want the room to do. Each mode is shown by its own symbol in the app.
Heats or cools by itself to hold the temperature you set.
Cools the room on warm days.
Heats the room, often more cheaply than other heating.
Takes damp out of the air without cooling it much.
Moves the air without heating or cooling.
Choose a fan speed, or Auto to let the unit decide. Quiet runs it more softly, which is good at night.
Turn on swing to move the air up and down the room. Some models can also move it side to side, so the whole room gets an even feel.
Depending on your model, you may also see:
Let the app do the work, and see what it costs to run.
For each room you can set the temperature, mode and fan speed to change at set times of day, on the days you choose. For example, warm the bedrooms before you get up and again in the evening.
Going away? Set a holiday schedule so the system stays off, or ticks over, until you're back.
Open a room to see how much electricity it has used, by day, week or month. It's a good way to spot a room that's running more than you thought.
Go to More, then Members, and invite the people you live with. They download Onecta, make their own Daikin account and can then control the rooms too.
Only the owner can add, remove or change units.
Onecta works with Amazon Alexa and Google Assistant. Add Daikin in your Alexa or Google Home app and log in with your Daikin account. You can then say things like "turn the lounge to 21 degrees".
The one thing that catches people out with a multi-room system.
All your rooms are fed by one outdoor unit. It can heat the house or cool it, but not both at the same time.
Cool, Dry and Fan can all run together. Heat can't run alongside Cool or Dry.
Either set the room on standby to the same kind of mode as the others, or switch off the room that's asking for the opposite. The waiting room starts again on its own once nothing disagrees.
In winter keep every room on Heat or Auto. In summer keep them on Cool, Dry or Fan.
Most problems are Wi-Fi problems, and most are quick to fix.
The units remember your old Wi-Fi, so after a new router or a password change they need adding again. For each room, tap +, then Add a device, and follow steps 4 to 6 with the new network.
If a room still won't connect, follow Daikin's Onecta connection help on daikin.eu.
If the app or the unit shows a warning or a code, write down the code and which room it's in, then look it up in your unit's user reference guide. Daikin publishes these at daikin.co.uk: search for the model number on the label of your unit. Please don't keep switching it off and on, as the code tells an engineer what the unit needs.
Tick each one off as you go. Nothing here is saved or sent.
Daikin keep their own help pages for the Onecta app up to date as the app changes.
The Onecta app: daikin.co.uk, then search for Onecta.
Getting started: Daikin's getting started guide on daikin.eu.
Won't connect: Daikin's connection help on daikin.eu.
Your yearly service keeps the system running efficiently and keeps your warranty in place.