I’m having issues.
Mobile phone app is working fine.
Home assistant integration states “unavailable”
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Same for me
Same for me too.
Same here. MEL app works but no response to HA.
Ditto. They haven’t pulled a MyQ, have they?
Chiming in. Mine is not reporting unavailable (yet) but cannot control it.
+1
HA reporting Unavailable,
but the MelCloud App on the smart phone works. and the AC I have works.
hi all
I have the exact same question, i realy would like to control the flow temp
but can`t now with the default Melcloud plugin in HA
This is all i can control in HA, i have read a lot of the discussions but cant find how to install this plugin.
So i mean the yellow markt one
Many thx 
Trying the CURL used to populate my rest sensors just now I get this reply:
curl -H "X-MitsContextKey:XX" "https://app.melcloud.com/Mitsubishi.Wifi.Client/user/ListDevices?id=YY&buildingID=ZZ"
401 Unauthorized: Access is denied due to invalid credentials
Is there an implication that we need to get new credentials? Can anyone remind me how to do this?
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Hi all,
I just got this too. Looks like you need to reauthenticate. Go to the melcloud integration, click Add Entry and put in your username/password. It will say something like “device already exists, access token refreshed” and all the sensors will be working again.
If you’re not using this integration, apologies you’ll have to figure it out for yourself but the summary is: get a new access token.
Good luck!
Bruce
3 Likes
Search for the topic “set target temperature mode flow on melcloud” there is an experimental branch which does this. I’ve been using it for months.
Great catch! Did this and now it’s working again, thank you 
Thanks, worked a treat. My REST sensors needed a new X-MitsContextKey as well which I got by following instructions at:
https://community.home-assistant.io/t/mitsubishi-melcloud-integration-with-home-assistant/26275/526
What a great community! All good now, I wonder why they did that?
Does anyone know how long the token last?
It seems it get reset atleast when I am using melcloud or the app on mobile phone.
I just lost the connection in homeassistant again!
Ditto. My last key lasted over a year but todays became invalid after a couple of hours. The integration still works though, so there must be a way of revalidating the key without inspecting their web page.
hi Bruce,
Been reading again, but no luck
Any change you could provide me te info to past in my .yaml file?
Or maybe point me in the right direction a bit more?
Sory for the inconvenience
My Melcloud integration restarted to work after some hours, with no action.
Maybe a temporary problem occurred on Mitsubishi server.
Mine isn’t reporting an error but the sensors aren’t being updated either. I’ve gone through Bruce Duncan’s process again. My REST sensors are OK though, with a new X-mits key (the 2nd new one today).
EDIT
No new data from the MELCloud integration since 16:21 UT.
I can confirm what ValentinoRo said. Mine also started working, for now, after an hour or so.
This resolved it for me, at least for now.
I got a 401 in the logs from MelCloud twice in the past few days, and nothing helped except removing and readding the component, but it only helped for a few hours or a day or so.
We’ll see if this helps long term.