Follow the steps:

1. Open the cover of the indoor unit.
2. Locate the control board slot (the one typically used for the factory WiFi module).
3. Plug the Faikin into the slot.
4. Connect it to your WiFi. The first time it powers up it creates its own temporary setup network, join that from your phone, enter your home WiFi details and give it a name. Full steps in the Setup guide.
5. Open the module's own web page in a browser on your home network. That small page, hosted on the module itself, is your control interface, all local, no cloud, no offshore connection. For most people this is all you need, and it is perfectly fine to stop here.
6. There is no Faikin app to download, and that is deliberate. An app would route your control through the cloud, and Faikin is local-first, so the on-module web page does the job.
7. Optional, only if you want to control your aircon while away from home (off your home WiFi): connect it to a home automation platform, Home Assistant, Apple Home, or Google and Alexa. Each has its own app, and the Faikin works with whichever you use. Home Assistant is simplest, its built-in Daikin integration just needs the module's IP.

(The module can also interface with compatible BLE temperature sensors as an external reference.)

Tip: Before purchasing, we recommend buyers read carefully the ESP32-Faikout Codeberg repo. Check your indoor unit model number appears on the confirmed list of working air-con units. If it doesn't, it'll probably still work, it just hasn't been added to the list yet!

We can look your model up and tell you which cable you'll need.

Our boards are pre-flashed with the latest stable release firmware (not beta) from RevK. We use and recommend RevK's signing key so official OTA firware updates are automatic.

Each Faikin model is individually tested for quality control and reliability to ensure it is plug-in ready.