I’ve seen people asking about support for Flexit ventilation systems, with some fairly complicated modbus solutions as options, but I haven’t seen any attempt at creating a Flexit Homey app. I’ve read that Flexit’s own system, Flexit Go, is a closed app and api and they’re not sharing any informatio…

I would probably trigger different ventilation modes automatically. Like Away when I’m away for some time, and Home when I’m back, and early triggering of High based on bathroom humidity changes. I’d probably also want to trigger the Cooker Hood mode early, instead of waiting for the under-pressure …

I don’t think cooker mode is available, as that one seems to be specifically triggered from signal cable. But the fireplace mode is sort of the same principle–significantly boosting supply air and limiting exhaust air and that one can be triggered from BACnet. The BACnet commands temporarily set tho…

Hi! I got tired from running to the flexit control screen, or starting the tedious app - just to set the system into fireplace mode. So, based on a couple of good bacnet githib repos, I got to put together a app that works for me now. Please test if you want: Flexit Nordic | Homey

The app I created got certified today: Flexit GO | Homey Let me know if you need any changed. I’ll get around to creating an app thread for this soon as well.

Great work. I already had the modbus version installed. Tried this one and it works fine. The only thing is that there is no data on the Extract Air Temperature

I’ll have a look. It works for me, but it may be that different models have the data stored differently. Can you share which model you have?

Nordic S4 I tested with @sobowitz app. It displays extract temperature. [1000004025] [1000004017]

App working great so far! Do you think it’s possible to have the “Change filter” function using the app?

[image] cscheiene: Nordic S4 I tested with @sobowitz app. It displays extract temperature. Same unit as I have. I’ll have a look why this isn’t working properly for you. [image] lunde: App working great so far! Do you think it’s possible to have the “Change filter” function using the a…

Flexit Nordic (BACnet)

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Ole_Markus_With February 19, 2026, 9:27pm 32

Created an app topic now. You can find it here: [APP][Pro] Flexit GO - Better indoor climate

Topic		Replies	Views
[APP][Pro] Flexit Nordic - Control your Flexit Nordic ventilation unit via BACnet Apps app , homey-pro , community-app	0	47	February 6, 2026
Flexit home ventilation system Devices app	3	3148	April 6, 2025
Flexit Nordic S4 modbus communication Questions & Help	2	3571	March 17, 2024
[APP][Pro] Flexit GO - Better indoor climate Apps app , homey-pro	21	209	April 13, 2026
[APP][Pro] Zehnder ComfoConnect Apps app , homey-pro	96	3220	April 14, 2026

Flexit Nordic (BACnet)

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