# Bug in combination of Vthermo + Homey Heating Scheduler? Bis **URL:** \ **Category:** Apps\ **Created:** [February 2, 2023, 10:19pm UTC](https://community.homey.app/t/bug-in-combination-of-vthermo-homey-heating-scheduler-bis/75952 "2023-02-02T22:19:50Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Frederic\_Gelve](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/frederic_gelve/32/16599_2.png) [@Frederic\_Gelve](https://community.homey.app/u/Frederic_Gelve)\ **Post date:** [February 2, 2023, 10:19pm UTC](https://community.homey.app/t/bug-in-combination-of-vthermo-homey-heating-scheduler-bis/75952/1 "2023-02-02T22:19:50Z")
I use the VThermo App 2 by @balmli with the Homey Heating Schedule 6 App by @Markus to control my house heating. Here are my beginner flow 🙂 [https://homey.app/f/yvfako](https://homey.app/f/yvfako) [https://homey.app/f/Mzoako](https://homey.app/f/Mzoako) [https://homey.app/f/L0Kako](https://homey.app/f/L0Kako) For some reasons, it doesn’t work well all the time. Sometimes Relay should switch anr they doesn’t. Sometimes I open the flow, click on check and the relay change status. Any idea? Or help to improve my flow. They are basic but I can’t see what is wrong. ---
**Author:** ![DirkG](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/dirkg/32/118897_2.png) [@DirkG](https://community.homey.app/u/DirkG)\ **Post date:** [February 3, 2023, 6:31am UTC](https://community.homey.app/t/bug-in-combination-of-vthermo-homey-heating-scheduler-bis/75952/2 "2023-02-03T06:31:22Z")
I guess it’s a typical Homey problem and has nothing to do with the apps. Add delay’s to the action cards: — 1. card without delay — 2. card 1 second delay — 3. card 2 seconds delay — 4. card 3 seconds delay Just try it out if it will solve the problem. ---
**Author:** ![Frederic\_Gelve](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/frederic_gelve/32/16599_2.png) [@Frederic\_Gelve](https://community.homey.app/u/Frederic_Gelve)\ **Post date:** [February 5, 2023, 8:09pm UTC](https://community.homey.app/t/bug-in-combination-of-vthermo-homey-heating-scheduler-bis/75952/3 "2023-02-05T20:09:16Z")
Hi Fantross, Thanks for your proposal. After several days if test unfortunately it doesn’t work. When vthermo is changing state, flow doesn’t always work. It’s really annoying because I can’t repeat this issue all the time. ---
**Author:** ![DirkG](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/dirkg/32/118897_2.png) [@DirkG](https://community.homey.app/u/DirkG)\ **Post date:** [February 6, 2023, 12:49pm UTC](https://community.homey.app/t/bug-in-combination-of-vthermo-homey-heating-scheduler-bis/75952/4 "2023-02-06T12:49:06Z")
Then I can’t help, unfortunately, because I don’t use either app, sorry. ---
**Author:** ![Peter\_Kawa](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/peter_kawa/32/173848_2.png) [@Peter\_Kawa](https://community.homey.app/u/Peter_Kawa)\ **Post date:** [December 20, 2023, 1:35pm UTC](https://community.homey.app/t/bug-in-combination-of-vthermo-homey-heating-scheduler-bis/75952/5 "2023-12-20T13:35:51Z")
Hello Frederic, To be able to track errors, I’d like you to first add timeline notifications / [Simple Log app](https://community.homey.app/t/77533) THEN & ELSE cards to your flows. (_I add SimpleLog cards to each and every flow, while the timeline is unreliable (can get rate limited), and lacks a sort & search function_) This way, you can discover: - No notification / no log entry: trigger didn’t work - Notification present / log entry present: trigger & flow worked, but the device(s) didn’t respond. Flows which only sometimes work / not work is AFAIK not Homey’s fault.