W600 killing itself in the middle of the night. Literally

I have 3 W600 a few weeks old mounted on radiators, a few nights ago one of the valves killed itself, literally… I suspect it pushed itself against the radiator valve until the case broke clean off. It woke me in the middle of the night, at first I did not know what happened, I just heard noise but did not manage to find where it came from, now when I wanted to open the window and move the curtain I found it on the floor…

Anyone has seen something like this happen before ? All my valves are finger tight, now I’m warried the other 2 may brake also…

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Hi @haoss07 ! That’s the first one I saw which broke! Hmm , definitely hard to say what’s the reason for….

I would contact Aqara support or supplier and send him pictures - as good as possible- to check what happened and sure you will get a replacement

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I’m waiting for reply from them, and my local seller.
I suspect was a firmware bug, maybe? About a day after I first mounted it, with update and calibration, i had to do a reset on it because i could hear the motor inside running continually in the open position. After reset and reconfigure it worked somewhat normally, it started closing and open. All 3 of them had times when they opened a little late (temperature had to drop more then set amount for it to open) but other than that they where regulating the temperature in the rooms so I let it do its thing, until the night this one broke.

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The Aqara support also can read out the log files… maybe they can find something what happened after the firmware update?!?:person_shrugging:t4:

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Same hapened to me, 1 of 4 just tore itself off. Installed for ~1 month. All of them were calibrated, i dont pay much attention if motors are running or not just have schedules and manual on/off.


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Yah. Thes seems bad, i have checked the other 2 i have and one of them has a stress mark on 2 of plastic legs. You may want to contact aquara support.

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Does it really not matter which pin you used?

If you picked a longer one than the one that matches your valve, that could be the cause.

I had a similar problem with my Netatmo smart valve, and their support advised me to use a shorter pin.

That solved the issue

well, next one and no there are no different pin’s…


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Same problem here. Hava installed 8 W600’s a few days ago. Now first one killed itself. I thought someone hit it by accident, but it was in such a fysically protected position, that bumping into it was practically impossible.
Hopefully the others won’t kill themselves aswell.

Have you already heared back from Aqara support?

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Just sharing my experience, this might be a common cause. After updating to the latest Zigbee firmware, my radiator valve started making strange noises after a few days, as if the motor were fighting the end stops. A manual calibration temporarily fixed it. It happened a few times last month but hasn’t recurred for over a week, so I suspect an electrical or software issue.

and I thought it can’t get any worse with the w600. but this tops everthing. And it does not appear to be an isolated incident, as it has occurred with various users.

but if this is a general production flaw, a replacement would not help… :frowning:

Definitely! You’re absolutely right! But hopefully Aqara will or can react on the next version / batch and make improvements

the 2 i had with problems where replaced, also a new firmware update landed.
I’m waiting to see if problems appear again. Temperature is going up tho so heating is not used now. It may take 1 year before automation for them kicks in…