# \[APP\] SENZ-WIFI (nVent Raychem) **URL:** \ **Category:** Apps\ **Tags:** app, official\ **Created:** [April 26, 2021, 2:50pm UTC](https://community.homey.app/t/app-senz-wifi-nvent-raychem/46749 "2021-04-26T14:50:30Z")\ **Posts on this page:** 20\ **Page:** 7
**Author:** ![Sharkys](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/sharkys/32/54029_2.png) [@Sharkys](https://community.homey.app/u/Sharkys)\ **Post date:** [October 19, 2025, 5:28pm UTC](https://community.homey.app/t/app-senz-wifi-nvent-raychem/46749/122 "2025-10-19T17:28:27Z")
On the other side it’s great that more and more users are using it 😉 Btw, is it down again ? > [Webhook] Error: An unexpected error occurred invoking ‘Subscribe’ on the server. NullReferenceException: Object reference not set to an instance of an object. ---
**Author:** ![Patrick\_Hendrickx](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/patrick_hendrickx/32/42717_2.png) [@Patrick\_Hendrickx](https://community.homey.app/u/Patrick_Hendrickx)\ **Post date:** [October 20, 2025, 8:56am UTC](https://community.homey.app/t/app-senz-wifi-nvent-raychem/46749/123 "2025-10-20T08:56:58Z")
Hi, yes it is down again, and we are restarting the services. It should be up and running again in about 1 hour. ---
**Author:** ![Patrick\_Hendrickx](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/patrick_hendrickx/32/42717_2.png) [@Patrick\_Hendrickx](https://community.homey.app/u/Patrick_Hendrickx)\ **Post date:** [October 20, 2025, 12:44pm UTC](https://community.homey.app/t/app-senz-wifi-nvent-raychem/46749/124 "2025-10-20T12:44:26Z")
The server is restarted and all seems to be working again. ---
**Author:** ![Gunnar\_Eklund](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/gunnar_eklund/32/9461_2.png) [@Gunnar\_Eklund](https://community.homey.app/u/Gunnar_Eklund)\ **Post date:** [October 23, 2025, 11:22am UTC](https://community.homey.app/t/app-senz-wifi-nvent-raychem/46749/125 "2025-10-23T11:22:55Z")
It has now been down again since yesterday at 13:11 good to hear that improvement on server capability and stability is coming ---
**Author:** ![Patrick\_Hendrickx](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/patrick_hendrickx/32/42717_2.png) [@Patrick\_Hendrickx](https://community.homey.app/u/Patrick_Hendrickx)\ **Post date:** [October 23, 2025, 12:39pm UTC](https://community.homey.app/t/app-senz-wifi-nvent-raychem/46749/126 "2025-10-23T12:39:57Z")
Hi Gunnar, we are restarting the server. Thank you for the information. ---
**Author:** ![Lennie\_Bergqvist](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/lennie_bergqvist/32/58059_2.png) [@Lennie\_Bergqvist](https://community.homey.app/u/Lennie_Bergqvist)\ **Post date:** [November 20, 2025, 11:28am UTC](https://community.homey.app/t/app-senz-wifi-nvent-raychem/46749/127 "2025-11-20T11:28:22Z")
Seems it’s down again, When running flows i get Token refresh failed. Removed the unit and tries to add it again. Say - New unit found. chose the units you want to add Rate Limited Close ---
**Author:** ![Swedownhill](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/swedownhill/32/121042_2.png) [@Swedownhill](https://community.homey.app/u/Swedownhill)\ **Post date:** [November 20, 2025, 7:22pm UTC](https://community.homey.app/t/app-senz-wifi-nvent-raychem/46749/128 "2025-11-20T19:22:25Z")
Yeah! Mine is not working either. I got the same error as Lennie. I attempted to repair the connection in homey (instead of removing and adding it back again), but it doesn’t reconnect. I created diagnostic logs and got the following id: 5690c3ca-7798-456a-9b34-bd7f7aa064fa ---
**Author:** ![Bjorn\_Rohl](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/bjorn_rohl/32/80867_2.png) [@Bjorn\_Rohl](https://community.homey.app/u/Bjorn_Rohl)\ **Post date:** [November 20, 2025, 7:50pm UTC](https://community.homey.app/t/app-senz-wifi-nvent-raychem/46749/129 "2025-11-20T19:50:36Z")
Hi I also have same problem Says ”rate limited”?? a3f88326-de6f-48f9-ad76-71c73708287c ![IMG_2188](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/6/f/6f2c6fd1da49b54b763baa2f4c6a6b55fd321bae.png) Here my diagnostic file Best regards Björn ---
**Author:** ![Sharkys](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/sharkys/32/54029_2.png) [@Sharkys](https://community.homey.app/u/Sharkys)\ **Post date:** [November 20, 2025, 8:19pm UTC](https://community.homey.app/t/app-senz-wifi-nvent-raychem/46749/130 "2025-11-20T20:19:22Z")
Weird, it worked for me until I restart the app - but it’s true that some of my “check” flows reported problems during day as well `[App] [Sync] [OAuth2Error] Error: Rate Limited` Let’s hope we get some feedback latest tomorrow… seeing API docs, [nothing has changed](https://api.senzthermostat.nvent.com/#burstratelimits), so hopefully it’s temporary problem only. ---
**Author:** ![Sharkys](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/sharkys/32/54029_2.png) [@Sharkys](https://community.homey.app/u/Sharkys)\ **Post date:** [November 21, 2025, 3:03pm UTC](https://community.homey.app/t/app-senz-wifi-nvent-raychem/46749/131 "2025-11-21T15:03:40Z")
@Patrick_Hendrickx , just by any chance, can someone check the rate limit issue please ? ---
**Author:** ![Patrick\_Hendrickx](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/patrick_hendrickx/32/42717_2.png) [@Patrick\_Hendrickx](https://community.homey.app/u/Patrick_Hendrickx)\ **Post date:** [November 21, 2025, 4:18pm UTC](https://community.homey.app/t/app-senz-wifi-nvent-raychem/46749/132 "2025-11-21T16:18:34Z")
Hi, We found the issue and fixed it. The issue was linked to the refresh token failures. It all xorks again now. Patrick ---
**Author:** ![Sharkys](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/sharkys/32/54029_2.png) [@Sharkys](https://community.homey.app/u/Sharkys)\ **Post date:** [November 21, 2025, 9:48pm UTC](https://community.homey.app/t/app-senz-wifi-nvent-raychem/46749/133 "2025-11-21T21:48:52Z")
Thank you, it’s working again 😉 ---
**Author:** ![Swedownhill](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/swedownhill/32/121042_2.png) [@Swedownhill](https://community.homey.app/u/Swedownhill)\ **Post date:** [November 21, 2025, 11:04pm UTC](https://community.homey.app/t/app-senz-wifi-nvent-raychem/46749/134 "2025-11-21T23:04:09Z")
Works for me too! Thanks for fixing it so quickly 😀🙏😊 ---
**Author:** ![Patrick\_Hendrickx](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/patrick_hendrickx/32/42717_2.png) [@Patrick\_Hendrickx](https://community.homey.app/u/Patrick_Hendrickx)\ **Post date:** [December 10, 2025, 3:20pm UTC](https://community.homey.app/t/app-senz-wifi-nvent-raychem/46749/135 "2025-12-10T15:20:59Z")
Hi all, Raychem is going to perform a server maintenance on Monday 15th of December and again on Tuesday the 16th of December. This maintenance will have major impact on the Homey SENZ-WIFI app, but after the maintenance, the majority of the server issues that we have experienced in the past couple of months should be resolved. So please be patient, and everything should be working again on Wednesday the 17th of December. ---
**Author:** ![Oddiq](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/oddiq/32/79081_2.png) [@Oddiq](https://community.homey.app/u/Oddiq)\ **Post date:** [December 18, 2025, 10:16am UTC](https://community.homey.app/t/app-senz-wifi-nvent-raychem/46749/136 "2025-12-18T10:16:21Z")
Hi, Any update regarding the server maintenance? I´m trying to reconnect but it does not work. ---
**Author:** ![Sharkys](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/sharkys/32/54029_2.png) [@Sharkys](https://community.homey.app/u/Sharkys)\ **Post date:** [December 18, 2025, 12:18pm UTC](https://community.homey.app/t/app-senz-wifi-nvent-raychem/46749/137 "2025-12-18T12:18:37Z")
Generally, connection was working yesterday - but repair did not work. When trying to repair - **500 Internal Server Error** … ---
**Author:** ![Patrick\_Hendrickx](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/patrick_hendrickx/32/42717_2.png) [@Patrick\_Hendrickx](https://community.homey.app/u/Patrick_Hendrickx)\ **Post date:** [December 18, 2025, 12:31pm UTC](https://community.homey.app/t/app-senz-wifi-nvent-raychem/46749/138 "2025-12-18T12:31:44Z")
I am working with the RAYCHEM IT team to see if something is wrong on our side. I will come back asap with an answer. ---
**Author:** ![Gunnar\_Eklund](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/gunnar_eklund/32/9461_2.png) [@Gunnar\_Eklund](https://community.homey.app/u/Gunnar_Eklund)\ **Post date:** [December 18, 2025, 2:00pm UTC](https://community.homey.app/t/app-senz-wifi-nvent-raychem/46749/139 "2025-12-18T14:00:03Z")
repair worked for me now, and after repair, connection is back online ---
**Author:** ![Sharkys](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/sharkys/32/54029_2.png) [@Sharkys](https://community.homey.app/u/Sharkys)\ **Post date:** [December 18, 2025, 2:24pm UTC](https://community.homey.app/t/app-senz-wifi-nvent-raychem/46749/140 "2025-12-18T14:24:54Z")
Same for me - even start working without repair. Thank you @Patrick_Hendrickx ! ---
**Author:** ![Patrick\_Hendrickx](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/patrick_hendrickx/32/42717_2.png) [@Patrick\_Hendrickx](https://community.homey.app/u/Patrick_Hendrickx)\ **Post date:** [December 18, 2025, 3:29pm UTC](https://community.homey.app/t/app-senz-wifi-nvent-raychem/46749/141 "2025-12-18T15:29:08Z")
The IT team at Raychem has found the issue and has released a patch, it is indeed solved now. And as the server upgrade is finished, we are expecting a way more stable system coming forward. Thank you all for the patience and all warnings when we had issues. This has been helpful to get things resolved. [Previous page](https://community.homey.app/t/app-senz-wifi-nvent-raychem/46749.md?page=6) [Next page](https://community.homey.app/t/app-senz-wifi-nvent-raychem/46749.md?page=8)