Shelly QNSW-002P16EU switches off automatically and then switches on again after a short time

[joefo]

Since the last update to version FW: v12.4.0, my Shelly QNSW-002P16EU switches off automatically and then switches on again after a short time. I've had this behavior before, unfortunately it's now extreme and the Wave 2PM is no longer usable.

 

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Joe

[Shelly Wave help]

We received few reports of this problem but for now we couldn't reproduce it in our test lab. We're still investigating this issue and for now the solution is to downgrade the Shelly Wave 2PM back to the 10.30 version.

You may find the firmware on the GitHub repository, and the instruction for manual update (downgrade proces is the same) for HA you may find on the next link.

[joefo]

3 hours ago, Shelly Wave help said:

We received few reports of this problem but for now we couldn't reproduce it in our test lab. We're still investigating this issue and for now the solution is to downgrade the Shelly Wave 2PM back to the 10.30 version.

You may find the firmware on the GitHub repository, and the instruction for manual update (downgrade proces is the same) for HA you may find on the next link.

Thanks for the feedback. I believe it is an electromagnetic compatibility issue. I have made my observations that when other devices in the room turn on or off it happens much more often.

[Shelly Wave help]

Thank you very much for the observation, it could help ut to go in the right direction.

Could you please let us know what types of loads are connected to the devices causing the Wave 2PM to turn off? For example, are they motors, lamps, computers, etc.? Also, if possible, please provide the power rating for each load.

[joefo]

4 hours ago, Shelly Wave help said:

Thank you very much for the observation, it could help ut to go in the right direction.

Could you please let us know what types of loads are connected to the devices causing the Wave 2PM to turn off? For example, are they motors, lamps, computers, etc.? Also, if possible, please provide the power rating for each load.

On Q1 there is an LED lamp with 18W and on Q2 there is a ceiling fan with 25W.

Error exists on both outputs.

[RDS001]

v12.4 is working fine for me but when I set an auto-off timer, any ON signal during the countdown does not reset the counter while this should be the behaviour if I understand the manual correctly.

[Shelly Wave help]

Thank you for letting us know, we will investigate the issue you reported.

[bardaxx]

I finally found a thread discussing this issue! I’ve spent the past month trying to find a solution, thinking it was just a configuration problem, haha.

This issue has been happening to me quite frequently (I have 10 Shelly devices installed in my house). In fact, it just occurred again a couple of minutes ago. My wife walked into the bedroom and randomly pressed the light switches, trying to find the right one. After she turned the light off, about 10 seconds later, one of the Shelly channels started flashing — turning on and off repeatedly 2 times (on - off / on - off)

At first, I thought it was some kind of sensor check or reset triggered by an error. Let me know if we can provide any logs or other information that might help you address this issue.

Best

Edited September 5 by bardaxx

[Shelly Wave help]

This could be another issue. The two on/off signals are typically triggered when the device is successfully included in or excluded from the gateway. It's possible that pressing the switch multiple times may cause these signals to be sent unintentionally, even though the device is already included.

We appreciate all of your feedback as this will help us to identify the issue and solve it.

[bardaxx]

On 6.9.2024 at 14:34, Shelly Wave help said:

This could be another issue. The two on/off signals are typically triggered when the device is successfully included in or excluded from the gateway. It's possible that pressing the switch multiple times may cause these signals to be sent unintentionally, even though the device is already included.

We appreciate all of your feedback as this will help us to identify the issue and solve it.

Make sense! Thanks for reply. Modifying this params, could help to fix the issue maybe?

[svb91]

Having the same issue like joefo. Sometimes my activated lights turn off and on a second later.

All shellys (almost 30+) were connected secured with the gateway and I'm on FW 10.30.0.

[Shelly Wave help]

On 9/21/2024 at 7:12 PM, bardaxx said:

Make sense! Thanks for reply. Modifying this params, could help to fix the issue maybe?

The Indicator parameters won't help as it is used for other purposes, like to recognise the device or in case of an alarm and if it trigger the indicator command class this will start to emit light, sound or vibrate depending of the device. The Indicator command class is mandatory so we have to add it even if we do not have a special use for it. 
 

[Shelly Wave help]

About the unwanted Off of the Wave 2PM and the firmware version 12.4. We were able to reproduce the issue and find the cause for that we would like to thank all the customers that brought the issue to our attention, and we are pleased to provide an update on our research. We value all bug reports, as they play a crucial role in helping us identify and address issues, ultimately leading to the development of better devices.

Root Cause Analysis and Temporary Solution for Shelly Wave 2 PM Firmware Issue 
Following an extensive investigation, we have successfully replicated the issue causing the Shelly Wave 2 PM to intermittently turn off the outputs. Our analysis reveals that the problem occurs when the gateway routes commands through the 2PM device. Notably, this issue is not attributed to our code implementation on the device, but rather a defect in the SDK (Software Development Kit) version 4.4.1, which is used in firmware version 12.04.

Current Workaround 
As a temporary solution, we recommend downgrading the affected devices to firmware version 10.30 (10.35), which does not utilise the problematic SDK version. This downgrade should mitigate the issue until a permanent fix is available.

Next Steps 
We are currently awaiting a resolution from Silicon Labs, the SDK provider, and will provide an update once a permanent solution is implemented. We appreciate your patience and understanding in this matter.

[MoiZie]

Also suffer from this bug. Downgrading to 10.30 fails continuously for me, I'm getting timeout errors on random percentages. Basically this happens as soon as one of my other Z-wave devices (which has a path to the hub through this specific unit) sends any kind of message. So I suppose this is related to this error.

[MoiZie]

Can't seem to edit my previous post, forgot to add that eventually (with shutting down all other z-wave devices) the downgrade worked.

[Lou]

Downgrading from 12.4 to 10.30 is nicely thought out, but brings other problems. For me, the associations work under 12.4, but not under 10.30. I use Homeseer.

[Shelly Wave help]

That's the only option we have, until the Silicon Labs don't release a fixed DSK we can't do much.
If you manage not to pass any routing trough the 2PM you should not have issues with the version 12.04

[chr13]

I have the same issue with the 2PMs. Hope for an update soon...

[Shelly Wave help]

Once we will have a fix ready it will be announced on the forum.

[Eugene]

On 10/10/2024 at 11:16 AM, Shelly Wave help said:

That's the only option we have, until the Silicon Labs don't release a fixed DSK we can't do much.
If you manage not to pass any routing trough the 2PM you should not have issues with the version 12.04

Do you have any news or timelines on this matter? I wonder when I can fix my switch 😞

Thanks

[Shelly Wave help]

We get the new SDK and compile the new firmware, we have to test if everything is ok, before we release the new Firmware.

[NiklasWall]

I have the same issue with 2PM. Switches off. Sometimes several times a day. Very annoying because it controls the heating in my garage.

[Eugene]

22 hours ago, NiklasWall said:

I have the same issue with 2PM. Switches off. Sometimes several times a day. Very annoying because it controls the heating in my garage.

hopefully new firmware will fix it. let's wait for it to be released

[Shelly Wave help]

We have the firmware ready, we're currently testing it, the bug is fixed we're looking if everything else is ok.
Anyone that needs it can download the attached file.

After the update give some time to the device - gateway to read the device info again, in case the device becomes marked as dead just press a switch or button connected to it.

If you will have any other issues please report it in reply to this post  

Have a nice weekend 😉

Wave_2PM_800_EU_20241119_1226_QNSW-002P14US_[13.00]_9DD2F96C.gbl

[RDS001]

Hello, I installed the new firmware but I noticed that if you set an auto-off timer, the countdown does not get reset for every ON signal it receives during the countdown. According to the manual this should be the case.