# \[APP\]\[Pro\] myVaillant - Comfort for your home **URL:** \ **Category:** Apps\ **Tags:** app, homey-pro, community-app\ **Created:** [February 17, 2025, 8:49pm UTC](https://community.homey.app/t/app-pro-myvaillant-comfort-for-your-home/130895 "2025-02-17T20:49:00Z")\ **Posts on this page:** 20\ **Page:** 11
**Author:** ![fomix](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/fomix/32/20889_2.png) [@fomix](https://community.homey.app/u/fomix)\ **Post date:** [July 10, 2026, 6:42am UTC](https://community.homey.app/t/app-pro-myvaillant-comfort-for-your-home/130895/202 "2026-07-10T06:42:42Z")
Hi, I’m on version 2.0.8 but still experiences issues (device not reachable) after multiple repair actions and a Homey restart. After a repair Homey starts displaying values again but only for a few minutes. > I have a VR940F internet module should that be of any relevance. ---
**Author:** ![Crapton](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/crapton/32/15039_2.png) [@Crapton](https://community.homey.app/u/Crapton)\ **Post date:** [July 10, 2026, 10:42am UTC](https://community.homey.app/t/app-pro-myvaillant-comfort-for-your-home/130895/203 "2026-07-10T10:42:12Z")
I see now that in the eqt screen the pressure is shown with 1 digit after the dot, so disregard my question on more digits. On the Insights however it only shows 2 even if the pressure is up or down several 0.1 bar. Could be a Homey Insights glitch - likely. There is no option to change the scaling in the graph. So the problem is outside of this app. Btw even after one day the Vaillant API connection keeps working. ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/c/c/cc9d8a56c6c76498ea27618dbcc273de1c3f87a4.jpeg) ---
**Author:** ![Pallieter](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/pallieter/32/79854_2.png) [@Pallieter](https://community.homey.app/u/Pallieter)\ **Post date:** [July 10, 2026, 2:27pm UTC](https://community.homey.app/t/app-pro-myvaillant-comfort-for-your-home/130895/204 "2026-07-10T14:27:45Z")
Can you share which devices you have? Which thermostat and gateway? thanks ---
**Author:** ![Pallieter](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/pallieter/32/79854_2.png) [@Pallieter](https://community.homey.app/u/Pallieter)\ **Post date:** [July 10, 2026, 2:31pm UTC](https://community.homey.app/t/app-pro-myvaillant-comfort-for-your-home/130895/205 "2026-07-10T14:31:30Z")
It does hide the digit I think when it is a round number. This is default Homey behaviour. And i see the same, in the insights is does show 2 digits after the comma. Looks like this happens because the graphs has very slight rouding curves on pressure changes. ---
**Author:** ![Daneroyd](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/daneroyd/32/120739_2.png) [@Daneroyd](https://community.homey.app/u/Daneroyd)\ **Post date:** [July 10, 2026, 2:51pm UTC](https://community.homey.app/t/app-pro-myvaillant-comfort-for-your-home/130895/206 "2026-07-10T14:51:18Z")
I have a VRC700 and a VR921 gateway ---
**Author:** ![Michael\_Scholz](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/michael_scholz/32/120715_2.png) [@Michael\_Scholz](https://community.homey.app/u/Michael_Scholz)\ **Post date:** [July 10, 2026, 2:51pm UTC](https://community.homey.app/t/app-pro-myvaillant-comfort-for-your-home/130895/207 "2026-07-10T14:51:54Z")
For me it’s arotherm plus Unitower plus sensoComfort 720 VR921 ---
**Author:** ![fomix](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/fomix/32/20889_2.png) [@fomix](https://community.homey.app/u/fomix)\ **Post date:** [July 12, 2026, 4:52pm UTC](https://community.homey.app/t/app-pro-myvaillant-comfort-for-your-home/130895/208 "2026-07-12T16:52:53Z")
Arotherm split plus & VR940F module. Still have the not reachable issue on version 2.0.8 Ie, I’m the guy who reported the bug with the two heating circuits on Github ;-). ---
**Author:** ![widameista](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/widameista/32/23333_2.png) [@widameista](https://community.homey.app/u/widameista)\ **Post date:** [July 13, 2026, 11:27am UTC](https://community.homey.app/t/app-pro-myvaillant-comfort-for-your-home/130895/209 "2026-07-13T11:27:49Z")
same for me! Repair works for a few minutes, but then all devices are unavailable… ---
**Author:** ![gmls](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/gmls/32/121004_2.png) [@gmls](https://community.homey.app/u/gmls)\ **Post date:** [July 21, 2026, 7:23pm UTC](https://community.homey.app/t/app-pro-myvaillant-comfort-for-your-home/130895/210 "2026-07-21T19:23:14Z")
Same problem for me, device only works for a while then,… ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/7/3/734a4b3b906fb1a52ec8dc8d206e56d043a0e0ac.png) ---
**Author:** ![Paul\_Scholte](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/paul_scholte/32/16562_2.png) [@Paul\_Scholte](https://community.homey.app/u/Paul_Scholte)\ **Post date:** [July 25, 2026, 1:15pm UTC](https://community.homey.app/t/app-pro-myvaillant-comfort-for-your-home/130895/211 "2026-07-25T13:15:54Z")
Since a few days ago I cannot login into MyVaillant account when trying to repair or install a device. I get the message “failed to login, check your credentials” . The same credentials are used to login in the iOS- MyVaillant app, so they are correct. I have done the usual checks: restarting Homey and reinstalling the app. Does anyone experience the same problems? Tips and tricks? Kind regards, Paul ---
**Author:** ![R\_DS](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/r_ds/32/120762_2.png) [@R\_DS](https://community.homey.app/u/R_DS)\ **Post date:** [July 28, 2026, 3:43pm UTC](https://community.homey.app/t/app-pro-myvaillant-comfort-for-your-home/130895/212 "2026-07-28T15:43:30Z")
I have exactly the same, on android ---
**Author:** ![Dracoignis](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/dracoignis/32/17161_2.png) [@Dracoignis](https://community.homey.app/u/Dracoignis)\ **Post date:** [July 29, 2026, 6:41am UTC](https://community.homey.app/t/app-pro-myvaillant-comfort-for-your-home/130895/213 "2026-07-29T06:41:32Z")
same issue, but after trying to log in a few times (with the errormessage everytime) 5minutes after giving up the devices seem to respond again (despite the errormessage) don’t know for how long. ---
**Author:** ![Crapton](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/crapton/32/15039_2.png) [@Crapton](https://community.homey.app/u/Crapton)\ **Post date:** [July 29, 2026, 9:30am UTC](https://community.homey.app/t/app-pro-myvaillant-comfort-for-your-home/130895/214 "2026-07-29T09:30:51Z")
Same problem. It does not accept user credentials when attempting repair. Restarted the app but no change. Strangely the “zone” device (in my case a VR940f) appears to give data, but the heatpump does not. myVaillant app on Android appears to work, I see status and water pressure. ---
**Author:** ![RMGoose](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/rmgoose/32/167241_2.png) [@RMGoose](https://community.homey.app/u/RMGoose)\ **Post date:** [July 29, 2026, 2:37pm UTC](https://community.homey.app/t/app-pro-myvaillant-comfort-for-your-home/130895/215 "2026-07-29T14:37:28Z")
Same issue here but with the initial install in the house I bought recently. When trying to log in on the Homey app I get the credentials error. Nothing more. Oddly enough when I try to add it on the web app before even being able to enter my credentials I get a brief error at the bottom of the page that says “Invalid\_endpoint”. I assume Vaillant changed something in their api/login server resulting in the myVaillant app to no longer reach the login server correctly. We’ll have to wait for Pallieter Verhoeven to fix the connection. Since it’s holiday season in Europe it might take some time. ---
**Author:** ![V0idSt4r](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/v0idst4r/32/168199_2.png) [@V0idSt4r](https://community.homey.app/u/V0idSt4r)\ **Post date:** [July 30, 2026, 8:49am UTC](https://community.homey.app/t/app-pro-myvaillant-comfort-for-your-home/130895/216 "2026-07-30T08:49:01Z")
Hi, Fixed the login issue Currently waiting for approval by Pallieter Verhoeven on github… ---
**Author:** ![Pallieter](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/pallieter/32/79854_2.png) [@Pallieter](https://community.homey.app/u/Pallieter)\ **Post date:** [July 31, 2026, 6:57am UTC](https://community.homey.app/t/app-pro-myvaillant-comfort-for-your-home/130895/217 "2026-07-31T06:57:43Z")
Thank you! Will check it and merge it tonight ---
**Author:** ![WimWeetjens](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/wimweetjens/32/79635_2.png) [@WimWeetjens](https://community.homey.app/u/WimWeetjens)\ **Post date:** [July 31, 2026, 8:50am UTC](https://community.homey.app/t/app-pro-myvaillant-comfort-for-your-home/130895/218 "2026-07-31T08:50:02Z")
Dat zou écht super zijn, Pallieter! De hele community kijkt er alvast naar uit 🙂 Dankjewel! ---
**Author:** ![widameista](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/widameista/32/23333_2.png) [@widameista](https://community.homey.app/u/widameista)\ **Post date:** [July 31, 2026, 11:36am UTC](https://community.homey.app/t/app-pro-myvaillant-comfort-for-your-home/130895/219 "2026-07-31T11:36:48Z")
can you share the root cause for the problem? ---
**Author:** ![Pallieter](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/pallieter/32/79854_2.png) [@Pallieter](https://community.homey.app/u/Pallieter)\ **Post date:** [July 31, 2026, 12:02pm UTC](https://community.homey.app/t/app-pro-myvaillant-comfort-for-your-home/130895/220 "2026-07-31T12:02:57Z")
It looks like the My Vaillant api added a ALTCHA check to verify legitimate users ---
**Author:** ![Pallieter](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/pallieter/32/79854_2.png) [@Pallieter](https://community.homey.app/u/Pallieter)\ **Post date:** [August 1, 2026, 11:17am UTC](https://community.homey.app/t/app-pro-myvaillant-comfort-for-your-home/130895/221 "2026-08-01T11:17:05Z")
Did a few test in my local environment, looks to be working fine. The fix is released in v2.0.9 🎉 [Previous page](https://community.homey.app/t/app-pro-myvaillant-comfort-for-your-home/130895.md?page=10) [Next page](https://community.homey.app/t/app-pro-myvaillant-comfort-for-your-home/130895.md?page=12)