# Fibaro dimmer 2 light connected switches on and off randomly

**URL:** <https://community.homey.app/t/fibaro-dimmer-2-light-connected-switches-on-and-off-randomly/36293>\
**Category:** Devices\
**Tags:** z-wave\
**Created:** [October 21, 2020, 1:14pm UTC](https://community.homey.app/t/fibaro-dimmer-2-light-connected-switches-on-and-off-randomly/36293 "2020-10-21T13:14:25Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Louis\_van\_de\_Wiel](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/louis_van_de_wiel/32/16607_2.png) [@Louis\_van\_de\_Wiel](https://community.homey.app/u/Louis_van_de_Wiel)\
**Post date:** [October 21, 2020, 1:14pm UTC](https://community.homey.app/t/fibaro-dimmer-2-light-connected-switches-on-and-off-randomly/36293/1 "2020-10-21T13:14:25Z")

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Hi,

I have all Fibaro Dimmer 2 installed. One of the dimmers the lightbulb switches on and off randomly. Sometimes it stays on for hours but also I did have moments where it switched on and off a multiple times a minute.

I looked at the app and also see it switched on and off (icon on and off)

This is the only dimmer where I did not use the neutral.

thanks,

Louis

Hoi,

Ik heb allemaal Fibaro dmmer 2 geinstalleerd.1 van de dimmers soms schakelt willekeurig aan en uit. Soms blijft deze uren goed maar soms schakelt hij meerdere malen per minuut uit en aan.

Ook zie ik in de app dat icoon aan en uit gaat?

Dit is de enige dimmer waarbij ik niet via de nul heb aangesloten.

Mvg,

Louis

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**Author:** ![VanGilles](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/vangilles/32/11478_2.png) [@VanGilles](https://community.homey.app/u/VanGilles)\
**Post date:** [October 21, 2020, 4:37pm UTC](https://community.homey.app/t/fibaro-dimmer-2-light-connected-switches-on-and-off-randomly/36293/2 "2020-10-21T16:37:00Z")

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> [@Fibaro dimmer 2: lights turn off&back on](https://community.homey.app/t/fibaro-dimmer-2-lights-turn-off-back-on/35067/2):
>
> Could be that your load on the dimmer is to low (\<20watt) and a Fibaro dimmer 2 bypass unit is needed.

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<div class="post-metadata">

**Author:** ![Louis\_van\_de\_Wiel](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/louis_van_de_wiel/32/16607_2.png) [@Louis\_van\_de\_Wiel](https://community.homey.app/u/Louis_van_de_Wiel)\
**Post date:** [October 21, 2020, 6:32pm UTC](https://community.homey.app/t/fibaro-dimmer-2-light-connected-switches-on-and-off-randomly/36293/3 "2020-10-21T18:32:14Z")

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Already a bypass is installed