Daikin Onecta for Home Assistant (Marketplace integration)

Installs: 7.3k sharing analytics
GitHub stars: 608
Connection: Uses the vendor's cloud
Upkeep: Updated in the last 6 months
Version: v5.0.2, October 27, 2026
Category: Climate, Heat pumps and air conditioning
Kind: Marketplace integration
Brand: Daikin
Needs: Needs the Marketplace (HACS on 2026.10 and older)
Domain: daikin_onecta
Source: github.com/jwillemsen/daikin_onecta
Issues: Report an issue

Independent directory, made by the developer of Vulpo. Not affiliated with Home Assistant or the Open Home Foundation.

About

Daikin Onecta is an integration for Daikin devices that are supported by the Daikin Onecta app. It talks to the Daikin cloud through the Onecta API, so a developer account and application credentials from Daikin are needed, and it is set up in the UI with a sign-in on the vendor's page. It provides climate, fan, water heater, switch, select, update, button, sensor and binary sensor platforms, including energy consumption sensors, status flags, a schedule select and a firmware update. Options let the polling be split into high and low frequency periods, each with its own start time and update interval, to reduce requests to Daikin. Another option ignores data refreshes for a set number of seconds after a command, and fan speed aliases compatible with HomeKit can be exposed. Repair notices appear when the daily or minute rate limit is reached, and the current poll limits are shown under system health.

Automatic summary of the README and code of jwillemsen/daikin_onecta. Something wrong, or are you the maintainer and want your own text here? Get in touch

Supports

Uses the vendor's cloud Needs an internet connection and an account with the vendor.
Found by itself Home Assistant spots it on the network and offers to add it.
Sign in with the vendor Connects through the vendor's own sign-in page.
From the Marketplace Installed through the Marketplace, formerly HACS.
Actively maintained Its author released or pushed a change in the last six months.

Provides

Climate
Water heaters
Fans
Switches
Sensors

Setting it up

Install it from the Marketplace and restart Home Assistant, then add it under Settings, Devices and services.

Pick authentication method

Application credentialsThe credentials you want to use to authenticate.

After setup

High frequency period update interval (minutes)
High frequency period start time
Expose HomeKit compatible fan speed aliases
Low frequency period update interval (minutes)
Low frequency period start time
Number of seconds that a data refresh is ignored after a command

Texts from the code of jwillemsen/daikin_onecta.

Entities

Binary sensorsDaylight saving time enabled, Is cool/heat master, Is firmware update supported, Is holiday mode active, Is in caution state, Is in emergency state, Is in error state, Is in installer state, Is in mode conflict, Is in warning state, Is lock function enabled, Is powerful mode active, and 1 more
SelectsSchedule
SensorsAir purification mode, Calculated leaving water temperature, Control mode, Cooling daily electrical consumption, Cooling daily gas consumption, Cooling monthly electrical consumption, Cooling monthly gas consumption, Cooling monthly thermal output, Cooling weekly electrical consumption, Cooling weekly gas consumption, Cooling yearly electrical consumption, Cooling yearly gas consumption, and 42 more
SwitchesEcono mode, Streamer mode
UpdatesFirmware update

Troubleshooting

DiagnosticsDownloads a diagnostics file to attach to a bug report.
System healthAdds its status to Home Assistant's system information.
Repair noticesNotices it can show in Settings, Repairs:The daily rate limit has been reached, The minute rate limit has been reached