# Fibaro dimmer /Z-wave issue

**URL:** <https://community.homey.app/t/fibaro-dimmer-z-wave-issue/14386>\
**Category:** Questions & Help\
**Created:** [June 13, 2019, 7:02pm UTC](https://community.homey.app/t/fibaro-dimmer-z-wave-issue/14386 "2019-06-13T19:02:27Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Tasz](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/tasz/32/17196_2.png) [@Tasz](https://community.homey.app/u/Tasz)\
**Post date:** [June 13, 2019, 7:02pm UTC](https://community.homey.app/t/fibaro-dimmer-z-wave-issue/14386/1 "2019-06-13T19:02:27Z")

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Hi everybody,

I have the following problem and I don’t know what to do anymore

Last week I installed 7 x Fibaro dimmer and 4 x Fibaro roller shutter 3  
These are a replacement for my KNX system so all these modules hang together in my fuse box  
Adding to Homey went without a problem.

Manually turning on, turning off and dimming the dimmers is also fine.

And now the problem,

If I make a flow where I control more than 1 dimmer, it goes wrong. 4 out of 5 times there are 1 or 2 dimmers that do not switch on or after a very long delay  
This is random and a different dimmer every time.  
Sometimes all dimmers come on, but usually 1 or 2 fails

 ![Screenshot_20190612-140253_Homey](https://us1.discourse-cdn.com/flex025/uploads/athom/original/2X/5/58d46c5913a639f83d9b9047c14afaad5d860f75.jpeg)

If I then manually switch on the dimmer, the dimmer will switch on normally.

What have I already tried

-delay put between the cards (see picture above)  
-homey placed in different places in the house, also in the fuse box 10 cm from the dimmers  
-All apps disabled except the Fibaro app  
-Homey reboots several times (also waited 15 min)  
-The dimmers gave a HEAL command  
-Flow made with 1 dimmer, that works great as long as it is only 1  
-Flow made with 2 dimmers, then it goes wrong  
-Scene activation disabled. Then it seemed resolved for a moment, but unfortunately

The problem occurs as

-A flow is started in which more than fibaro 2 dimmers are controlled  
-A GROUP is switched with multiple fibaro dimmers  
-A command is given via google home, eg “light on”

Of course I first thought of a reception problem, but since I can switch the lights manually, this does not seem to be the cause.

All zigbee devices (15 pieces) do it all perfectly.

I had quite a long 1 fibaro dimmer to test. Now made the decision to buy 6 more and it doesn’t work.

Who knows what to do?

_sorry for my English. I mainly used google translate_

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**Author:** ![Jamie](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/jamie/32/5274_2.png) [@Jamie](https://community.homey.app/u/Jamie)\
**Post date:** [June 16, 2019, 12:31pm UTC](https://community.homey.app/t/fibaro-dimmer-z-wave-issue/14386/2 "2019-06-16T12:31:49Z")

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The beta of the[group app](https://apps.athom.com/app/com.swttt.devicegroups) has the ability to ‘retry’ when a device fails. You might want to give that a go in the flow.

Not this doesn’t ‘fix’ the problem, simply hides the side-effects. You might want to double check that the device is correctly reporting its state. If someone else knows an actual fix, I would also be interested.