# \[APP\]\[Pro\] Mitsubishi WF-RAC - Cooling, heating and ventilation **URL:** \ **Category:** Apps\ **Tags:** app, official, homey-pro\ **Created:** [March 4, 2023, 12:54am UTC](https://community.homey.app/t/app-pro-mitsubishi-wf-rac-cooling-heating-and-ventilation/77116 "2023-03-04T00:54:28Z")\ **Posts on this page:** 20\ **Page:** 6
**Author:** ![Robkrekel](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/robkrekel/32/113089_2.png) [@Robkrekel](https://community.homey.app/u/Robkrekel)\ **Post date:** [April 14, 2025, 11:35am UTC](https://community.homey.app/t/app-pro-mitsubishi-wf-rac-cooling-heating-and-ventilation/77116/105 "2025-04-14T11:35:50Z")
Every time a flow turns on one of my AC’s it’s being turned off in a view seconds. If I turning it manually with homey, is also is turned off a view seconds. Ik don’t get why. ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/9/c/9c7f6dcb5fffb902465805d6649ff9ddeba52e2a.png) ---
**Author:** ![Sam\_Knippers](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/sam_knippers/32/121123_2.png) [@Sam\_Knippers](https://community.homey.app/u/Sam_Knippers)\ **Post date:** [April 25, 2025, 6:31pm UTC](https://community.homey.app/t/app-pro-mitsubishi-wf-rac-cooling-heating-and-ventilation/77116/106 "2025-04-25T18:31:12Z")
Hey Edwin, If you’re still active, any chance you could take a look at this? d59d67ad-5243-4919-959e-5ae5d9a4d4e7 I’ve reinstalled the app a couple times. The controls work for a few actions and then goes to device unavailable. On my separate 2.4ghz IoT network, I have a strong and stable connection, and my homey is in the same subnet… I’m a bit lost of what to try. Thanks, Sam ---
**Author:** ![Robkrekel](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/robkrekel/32/113089_2.png) [@Robkrekel](https://community.homey.app/u/Robkrekel)\ **Post date:** [May 20, 2025, 10:36am UTC](https://community.homey.app/t/app-pro-mitsubishi-wf-rac-cooling-heating-and-ventilation/77116/107 "2025-05-20T10:36:59Z")
After my problem on april 14, i’ve reinstalled the airco’s in homey en it worked fine. Until today. Now i’ve got the same problem as you… Maybe another reinstal will work, but with a lot of flowcards to replace that’s not my first option. ---
**Author:** ![Robkrekel](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/robkrekel/32/113089_2.png) [@Robkrekel](https://community.homey.app/u/Robkrekel)\ **Post date:** [May 20, 2025, 12:23pm UTC](https://community.homey.app/t/app-pro-mitsubishi-wf-rac-cooling-heating-and-ventilation/77116/108 "2025-05-20T12:23:34Z")
Re-installed 1 airco, but still not unvailable. Via Smart-M-air everthing works fine… ---
**Author:** ![Robkrekel](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/robkrekel/32/113089_2.png) [@Robkrekel](https://community.homey.app/u/Robkrekel)\ **Post date:** [May 22, 2025, 4:42am UTC](https://community.homey.app/t/app-pro-mitsubishi-wf-rac-cooling-heating-and-ventilation/77116/109 "2025-05-22T04:42:06Z")
Typical, from one moment to the other everything seems to work again. Fingers crossed. Now rebuild my flow from the reinstalled airco. ---
**Author:** ![JvdMeulen](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/jvdmeulen/32/71049_2.png) [@JvdMeulen](https://community.homey.app/u/JvdMeulen)\ **Post date:** [June 3, 2025, 6:01am UTC](https://community.homey.app/t/app-pro-mitsubishi-wf-rac-cooling-heating-and-ventilation/77116/110 "2025-06-03T06:01:32Z")
Same problem here ---
**Author:** ![Robkrekel](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/robkrekel/32/113089_2.png) [@Robkrekel](https://community.homey.app/u/Robkrekel)\ **Post date:** [June 3, 2025, 7:05am UTC](https://community.homey.app/t/app-pro-mitsubishi-wf-rac-cooling-heating-and-ventilation/77116/111 "2025-06-03T07:05:48Z")
Problem is there again. ---
**Author:** ![Robkrekel](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/robkrekel/32/113089_2.png) [@Robkrekel](https://community.homey.app/u/Robkrekel)\ **Post date:** [June 3, 2025, 10:48am UTC](https://community.homey.app/t/app-pro-mitsubishi-wf-rac-cooling-heating-and-ventilation/77116/112 "2025-06-03T10:48:14Z")
One of two AC’s is connected again, without doing anything. Just like 2 weeks ago [[APP][Pro] Mitsubishi WF-RAC - Cooling, heating and ventilation - #109 by Robkrekel](https://community.homey.app/t/app-pro-mitsubishi-wf-rac-cooling-heating-and-ventilation/77116/109) ---
**Author:** ![ELTUNO](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/eltuno/32/123104_2.png) [@ELTUNO](https://community.homey.app/u/ELTUNO)\ **Post date:** [June 7, 2025, 11:53am UTC](https://community.homey.app/t/app-pro-mitsubishi-wf-rac-cooling-heating-and-ventilation/77116/113 "2025-06-07T11:53:12Z")
I had 5 units working for a year. Now all are unreachable in Homey but still work fine with Smart M-Air. Anyone figured out how to solve it? ---
**Author:** ![Oscar1](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/oscar1/32/8845_2.png) [@Oscar1](https://community.homey.app/u/Oscar1)\ **Post date:** [June 7, 2025, 1:29pm UTC](https://community.homey.app/t/app-pro-mitsubishi-wf-rac-cooling-heating-and-ventilation/77116/114 "2025-06-07T13:29:09Z")
Remove your devices and add them again and fix all broken flows. ---
**Author:** ![Robkrekel](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/robkrekel/32/113089_2.png) [@Robkrekel](https://community.homey.app/u/Robkrekel)\ **Post date:** [June 12, 2025, 5:28am UTC](https://community.homey.app/t/app-pro-mitsubishi-wf-rac-cooling-heating-and-ventilation/77116/115 "2025-06-12T05:28:22Z")
With a little patience (days) they should come back as reachable. Read the messages above. Re-instal doesn’t alway help [[APP][Pro] Mitsubishi WF-RAC - Cooling, heating and ventilation - #108 by Robkrekel](https://community.homey.app/t/app-pro-mitsubishi-wf-rac-cooling-heating-and-ventilation/77116/108) ---
**Author:** ![JvdMeulen](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/jvdmeulen/32/71049_2.png) [@JvdMeulen](https://community.homey.app/u/JvdMeulen)\ **Post date:** [June 19, 2025, 9:46pm UTC](https://community.homey.app/t/app-pro-mitsubishi-wf-rac-cooling-heating-and-ventilation/77116/116 "2025-06-19T21:46:17Z")
I have 6 indoor units, but (the same) one always disconnects. Is there a limit ? Or is the source-code available that i can take a look at? ---
**Author:** ![evdpol](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/evdpol/32/26730_2.png) [@evdpol](https://community.homey.app/u/evdpol)\ **Post date:** [June 20, 2025, 8:17am UTC](https://community.homey.app/t/app-pro-mitsubishi-wf-rac-cooling-heating-and-ventilation/77116/117 "2025-06-20T08:17:48Z")
> **[GitHub - edwinvdpol/homey-wfrac: Mitsubishi (WF-RAC) for Homey](https://github.com/edwinvdpol/homey-wfrac)** > > Mitsubishi (WF-RAC) for Homey ---
**Author:** ![JvdMeulen](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/jvdmeulen/32/71049_2.png) [@JvdMeulen](https://community.homey.app/u/JvdMeulen)\ **Post date:** [June 20, 2025, 7:11pm UTC](https://community.homey.app/t/app-pro-mitsubishi-wf-rac-cooling-heating-and-ventilation/77116/118 "2025-06-20T19:11:45Z")
Something strange is happening, when i do i “homey app run” it doesnt give a problem. When i do a ‘homey app install’ , after ± \< 1 minute, it shows a red triangle. It’'s always the same airco that gives ‘the problem’ I’m on the v1.2.3 and on homey v12.4.4 ---
**Author:** ![evdpol](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/evdpol/32/26730_2.png) [@evdpol](https://community.homey.app/u/evdpol)\ **Post date:** [June 25, 2025, 7:50pm UTC](https://community.homey.app/t/app-pro-mitsubishi-wf-rac-cooling-heating-and-ventilation/77116/119 "2025-06-25T19:50:47Z")
I know, weird eh? Nobody online / other communities / integrations know what causes this “connection failure”. I haven’t seen a solution for this problem somewhere else unfortunately. ---
**Author:** ![JvdMeulen](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/jvdmeulen/32/71049_2.png) [@JvdMeulen](https://community.homey.app/u/JvdMeulen)\ **Post date:** [June 26, 2025, 5:32am UTC](https://community.homey.app/t/app-pro-mitsubishi-wf-rac-cooling-heating-and-ventilation/77116/120 "2025-06-26T05:32:44Z")
Did you ask the help ( because they clearly don;t read here ) of athom? Since we’re all helping their device get better. Maybe they have some extra tooling to debug the issue. ---
**Author:** ![evdpol](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/evdpol/32/26730_2.png) [@evdpol](https://community.homey.app/u/evdpol)\ **Post date:** [June 26, 2025, 7:47am UTC](https://community.homey.app/t/app-pro-mitsubishi-wf-rac-cooling-heating-and-ventilation/77116/121 "2025-06-26T07:47:39Z")
This think this isn’t the problem of Athom / Homey, it has something to do with the Mitsubishi WiFi adapter and how it works internally maybe. ---
**Author:** ![Calvin](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/calvin/32/120942_2.png) [@Calvin](https://community.homey.app/u/Calvin)\ **Post date:** [June 26, 2025, 6:13pm UTC](https://community.homey.app/t/app-pro-mitsubishi-wf-rac-cooling-heating-and-ventilation/77116/122 "2025-06-26T18:13:49Z")
Hi all, I have setup my AC-units in my Homey Pro and pushed all my devices to Homekit with Homekitty, but the AC-units are not supported according Homekitty. I read that people are doing the same and can control their AC unit with Homekit like this. Anyone familiar with this issue? ---
**Author:** ![Marco\_van\_Barneveld](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/marco_van_barneveld/32/70931_2.png) [@Marco\_van\_Barneveld](https://community.homey.app/u/Marco_van_Barneveld)\ **Post date:** [July 6, 2025, 10:30am UTC](https://community.homey.app/t/app-pro-mitsubishi-wf-rac-cooling-heating-and-ventilation/77116/123 "2025-07-06T10:30:26Z")
Hi Edwin, I read several users report problems that de airco’s can not be controlled from homey anymore, but still report al their status changes. It happened to me a few months ago and now it happened again on sunday 29-7 around 04:00 I can see in my logging.. (a27684fe-1d9b-47d9-ae95-0a197c490ccb). Deleting and pairing again is the solution, but fixing 50+ cards is not funny anymore after 3 times. My wifi is stable, devices have fixed IP as I described to you earlier. I restored my homey to a view days earlier when it still worked, but no effect. I notice one strange thing. In the MHI app only 1 smarytphone is connected to de Airco unit, and that is the MHI app itself. That is strage, somehow Homey is kicked out as a controlling device? I Hope you can look into this, because several users experience this (recurring) problem. Perhaps there is a way to make it possible reconnect/repair the connection WITHOUT having to delete the devices? Or perhaps anyone else has A permanent solution exept from reconnecting? I hope you can react on this message. Kind Regards, Marco van Barneveld. ---
**Author:** ![evdpol](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/evdpol/32/26730_2.png) [@evdpol](https://community.homey.app/u/evdpol)\ **Post date:** [July 8, 2025, 1:28am UTC](https://community.homey.app/t/app-pro-mitsubishi-wf-rac-cooling-heating-and-ventilation/77116/124 "2025-07-08T01:28:00Z")
> [@Marco\_van\_Barneveld](#): > > I notice one strange thing. In the MHI app only 1 smarytphone is connected to de Airco unit, and that is the MHI app itself. > That is strage, somehow Homey is kicked out as a controlling device? What makes you think that Homey is “kicked out” as a controlling device? I’ve never had _that_ problem before tbh. > [@Marco\_van\_Barneveld](#): > > Perhaps there is a way to make it possible reconnect/repair the connection WITHOUT having to delete the devices? How long did you wait before you re-create the devices? My connections go down also sometimes, but they will restore eventually. Did you also try to restart the app in Homey? Furthermore, I can see a LOT of these lines in your error report (at least every 5 minutes for 1 specific airco): ` [Device:xxxxxxx] Last seen changed 192.168.1.68:51443` You need to check your network setup. It always gets the same IP address, but that is looking weird to me. And every **30 minutes** you get this error (for 1 specific airco’s): `[Device:xxxxxxx] [Sync] Error: error.connection` So, 1 airco is “rediscovered” all the time, and 2/3 don’t, but have connection errors. I found this [interesting topic](https://community.ui.com/questions/AC-Units-IOT-disconnecting-from-UniFi-Wi-Fi-at-regular-hourly-Intervals/821cd3e4-46a0-4d6b-8fd0-8d5cf182b90f?page=1) which proves that WF-RAC devices will **terminate the network connection to the router every hour!!** [Previous page](https://community.homey.app/t/app-pro-mitsubishi-wf-rac-cooling-heating-and-ventilation/77116.md?page=5) [Next page](https://community.homey.app/t/app-pro-mitsubishi-wf-rac-cooling-heating-and-ventilation/77116.md?page=7)