# Strange behaviour Fibaro FGS-222 **URL:** \ **Category:** Devices\ **Created:** [April 16, 2020, 2:58pm UTC](https://community.homey.app/t/strange-behaviour-fibaro-fgs-222/28494 "2020-04-16T14:58:42Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![Eternity](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/eternity/32/102113_2.png) [@Eternity](https://community.homey.app/u/Eternity)\ **Post date:** [April 16, 2020, 2:58pm UTC](https://community.homey.app/t/strange-behaviour-fibaro-fgs-222/28494/1 "2020-04-16T14:58:42Z")
I have two Fibaro FGS-222 double relays. The are both used as potential free relays. One only has the primary relays connected (second channel is not used). The other did too, but today I connected the second channel of that 222. Now, when I use the Homey App to switch that second channel ON, it switches ON and **immediately** switches OFF again. I thought it must have automatic switching of (with a short delay) set to ON. But that value is 0. I checked the other settings and compared them with the other 222 (of which I can switch ON / OFF the relay’s second channel). All settings are the same. What could be wrong here? ---
**Author:** ![Shakesbeard](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/shakesbeard/32/15112_2.png) [@Shakesbeard](https://community.homey.app/u/Shakesbeard)\ **Post date:** [April 16, 2020, 3:01pm UTC](https://community.homey.app/t/strange-behaviour-fibaro-fgs-222/28494/2 "2020-04-16T15:01:19Z")
Had that issue when installing. Double check your wiring, you most likely missed something there. ---
**Author:** ![Eternity](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/eternity/32/102113_2.png) [@Eternity](https://community.homey.app/u/Eternity)\ **Post date:** [April 16, 2020, 3:06pm UTC](https://community.homey.app/t/strange-behaviour-fibaro-fgs-222/28494/3 "2020-04-16T15:06:50Z")
![Schermafbeelding 2020-04-02 om 15.43.16](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/0/e/0e842143823c9d9c2e4037e93ab41881f5c1c6af.png) I have not connected the L with the IN (COMMON). Potential free switching is between IN and Q1 (that works). How to use the second relay? Use the IN and Q2? (I don’t use S1 en S2) ---
**Author:** ![Caseda](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/caseda/32/138695_2.png) [@Caseda](https://community.homey.app/u/Caseda)\ **Post date:** [April 16, 2020, 3:11pm UTC](https://community.homey.app/t/strange-behaviour-fibaro-fgs-222/28494/4 "2020-04-16T15:11:44Z")
Yes, IN for both Q1 and Q2 the input, they can’t be fully seperated (like the drawing you show already states), so only possible if the input can be same. ---
**Author:** ![Fire69](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/fire69/32/8758_2.png) [@Fire69](https://community.homey.app/u/Fire69)\ **Post date:** [April 16, 2020, 3:12pm UTC](https://community.homey.app/t/strange-behaviour-fibaro-fgs-222/28494/5 "2020-04-16T15:12:13Z")
If you haven’t connected the IN, there is no power entering to go to Q1/Q2. The L is only to power the module. ---
**Author:** ![Eternity](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/eternity/32/102113_2.png) [@Eternity](https://community.homey.app/u/Eternity)\ **Post date:** [April 16, 2020, 3:19pm UTC](https://community.homey.app/t/strange-behaviour-fibaro-fgs-222/28494/6 "2020-04-16T15:19:25Z")
> [@Caseda](#): > > Yes, IN for both Q1 and Q2 the input, they can’t be fully seperated (like the drawing you show already states), so only possible if the input can be same. That’s how I have connected it. But the second relay switches off immediatelly after manually using the App to switch it on. Relay 1 switches a central heater (cv-ketel) ON/OFF. Relay 2 is now connected to a potential free input on a water heater system. ---
**Author:** ![Eternity](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/eternity/32/102113_2.png) [@Eternity](https://community.homey.app/u/Eternity)\ **Post date:** [April 16, 2020, 3:31pm UTC](https://community.homey.app/t/strange-behaviour-fibaro-fgs-222/28494/7 "2020-04-16T15:31:17Z")
> [@Fire69](#): > > If you haven’t connected the IN, there is no power entering to go to Q1/Q2. > The L is only to power the module. Yep, the module is powered. Using relay IN/Q1 works. The IN/Q2 doesn’t. It switches Off immediately. I will remove the wires bwteen in and Q2. If it than does work, it is the input load… ---
**Author:** ![Eternity](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/eternity/32/102113_2.png) [@Eternity](https://community.homey.app/u/Eternity)\ **Post date:** [April 16, 2020, 3:42pm UTC](https://community.homey.app/t/strange-behaviour-fibaro-fgs-222/28494/8 "2020-04-16T15:42:43Z")
Hm… With nothing connected between IN and Q2, the relay still switches off after a ON ![Screenshot_2020-04-16-17-41-21-938_app.homey](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/0/d/0de85251ecd16e8d5d0bf4d95118f7dc3e2a1271.jpeg) Perhaps a reset of the 222? ---
**Author:** ![peltsi51](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/peltsi51/32/12564_2.png) [@peltsi51](https://community.homey.app/u/peltsi51)\ **Post date:** [April 16, 2020, 7:14pm UTC](https://community.homey.app/t/strange-behaviour-fibaro-fgs-222/28494/9 "2020-04-16T19:14:11Z")
What do you mean by “connected between IN and Q2”? You shouldn’t connect anything between them… The load should be connected between Q2 and neutral wire. Do you have three phase electric system in your house? If the central heater control voltage is from different phase than water heater system it will make a short circuit between phases because the FGS222 uses one common (IN) for both channels as stated before by Caseda. That could also break the FGS. What about the loading of the output Q2? Was it over 1,5kW per channel? ---
**Author:** ![Eternity](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/eternity/32/102113_2.png) [@Eternity](https://community.homey.app/u/Eternity)\ **Post date:** [April 17, 2020, 1:42pm UTC](https://community.homey.app/t/strange-behaviour-fibaro-fgs-222/28494/10 "2020-04-17T13:42:39Z")
No load at all! Both potential free. This weekend I will reset the relay and try again. Thanks for all support! UPDATE A reset of the relay solved the problem. S2 works fine again.