# Unable to add z-wave nodes "unknown error occured"

**URL:** <https://community.homey.app/t/unable-to-add-z-wave-nodes-unknown-error-occured/61600>\
**Category:** Questions & Help\
**Created:** [March 12, 2022, 8:39am UTC](https://community.homey.app/t/unable-to-add-z-wave-nodes-unknown-error-occured/61600 "2022-03-12T08:39:30Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![krfr](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/krfr/32/48939_2.png) [@krfr](https://community.homey.app/u/krfr)\
**Post date:** [March 12, 2022, 8:39am UTC](https://community.homey.app/t/unable-to-add-z-wave-nodes-unknown-error-occured/61600/1 "2022-03-12T08:39:31Z")

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I’m adding new z-wave devices to my setup. For most battery powered devices, I’m not able to include them due to an “unknown error has occured” during the inclusion process. Non-battery powered ones work fine, or so it seems.

 ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/5/a/5a2e884efd2cd96c42e3abf38a4d2e4ec21013db.png)

I’ve tried with some Fibaro Smoke Sensors, Philio 3-1 sensors and Aeotec door sensors. Same result.

Tried to far to restart homey - no change. Include from apps on different devices + web app - no change. Any idea what to try next? The z-wave log looks good from Homey, but obviously it’s not working. See log below.

Any ideas anyone? Thanks!

| 2022-03-12T08:34:00.075Z | Command[143] start: removeNode |
| --- | --- |
| 2022-03-12T08:34:00.085Z | Command[143] status: removeNode, status: REMOVE\_NODE\_STATUS\_LEARN\_READY |
| 2022-03-12T08:34:07.048Z | Command[143] status: removeNode, status: REMOVE\_NODE\_STATUS\_NODE\_FOUND |
| 2022-03-12T08:34:08.033Z | Command[143] status: removeNode, status: REMOVE\_NODE\_STATUS\_REMOVING\_SLAVE |
| 2022-03-12T08:34:08.038Z | Command[143] status: removeNode, status: REMOVE\_NODE\_STATUS\_DONE |
| 2022-03-12T08:34:08.090Z | Command[143] end: removeNode |
| 2022-03-12T08:34:09.101Z | Command[144] start: addNode |
| 2022-03-12T08:34:09.110Z | Command[144] status: addNode, status: ADD\_NODE\_STATUS\_LEARN\_READY |
| 2022-03-12T08:34:11.331Z | Command[144] status: addNode, status: ADD\_NODE\_STATUS\_NODE\_FOUND |
| 2022-03-12T08:34:11.704Z | Command[144] status: addNode, status: ADD\_NODE\_STATUS\_ADDING\_SLAVE |
| 2022-03-12T08:34:12.739Z | Command[144] status: addNode, status: ADD\_NODE\_STATUS\_PROTOCOL\_DONE |
| 2022-03-12T08:34:12.798Z | Command[144] status: addNode, status: ADD\_NODE\_STATUS\_DONE |
| 2022-03-12T08:34:20.383Z | Command[144] end: addNode |

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<div class="post-metadata">

**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:** [March 12, 2022, 10:02am UTC](https://community.homey.app/t/unable-to-add-z-wave-nodes-unknown-error-occured/61600/2 "2022-03-12T10:02:40Z")

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Maybe you should push the pair button every one or two seconds while pairing.  
Battery operated devices seem to go to sleep mode pretty quick, also during the pair process

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**Author:** ![JPe4619](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/jpe4619/32/9017_2.png) [@JPe4619](https://community.homey.app/u/JPe4619)\
**Post date:** [March 12, 2022, 10:10am UTC](https://community.homey.app/t/unable-to-add-z-wave-nodes-unknown-error-occured/61600/3 "2022-03-12T10:10:37Z")

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Keep the device and Homey (very) close together during pairing and like Peter said, push the button every 2 seconds.

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<div class="post-metadata">

**Author:** ![krfr](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/krfr/32/48939_2.png) [@krfr](https://community.homey.app/u/krfr)\
**Post date:** [March 12, 2022, 10:46am UTC](https://community.homey.app/t/unable-to-add-z-wave-nodes-unknown-error-occured/61600/4 "2022-03-12T10:46:54Z")

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Thanks, that did the trick with the continous pushing of the button!