pulling my hair out trying to fit smart relay.

montyfert · Nov 19, 2021

hi im trying to fit a smart relay thing on my stairs light there is i switch at the top and bottom.
smart relay has 6 connections for no neutral switch
have it working on bench as follows.
L live
L1
L1 from bulb
COM to switch com
S1 to downstairs com
S1
works great on bench .
when i try on my stair light it wont work?

main swith upstairs has
com red
L1 black and blue wires
L2 red and yellow wires

downstairs switch
com red
L1 blue
L2 yellow

ceiling rose
2 block - brown black red wire
3 block - red red wires
3 block - black black blue wires

any advice would ge great berfor i pull all my hair out.
thanks martin

Aaron b · Nov 19, 2021

I thought the s1 terminals were low voltage for the switch but it seems these are all different. Do you have a picture or any info of the module? I've seen one on Amazon that lines up with your wiring and terminal labels. Have you tried a incandescent lamp? It needs to leak some current to work. They are sometimes provided with a capacitor for that purpose.

montyfert · Nov 19, 2021

[ElectriciansForums.net] pulling my hair out trying to fit smart relay.

Aaron b · Nov 19, 2021

montyfert said:
View attachment 92143

Thanks, I updated my post above when I found a similar one. I suspect your using a led lamp that isn't compatible with the module.

montyfert · Nov 19, 2021

hi yes tried an incandescent bulb didnt make any difference
thing is
when i wired it up on bench like this it works fine.

Mikegh · Nov 19, 2021

Looking at that it'll work with 2 2-ways as per your sketch

but you'd have to reconfigure the existing house wiring

Have u reconfigured the switch wiring as per your drawing there ?

Aaron b · Nov 19, 2021

What's not working then? It it powering up and discoverable on the ZigBee hub? Can you switch the lamp on through the hub? The switch is between the red and black on the two core from the upstairs switch, do you have the means to check continuity? To make it look like your diagram you have joined the two reds in the switch which connects the common from the downstairs switch to the module and the black is connected to the common of the upstairs switch to the module. It would be easier not to mess with the switches and just remove the live and switched live from the rose. I've attached two sketches showing the two switching arrangements hopefully they are clear enough. How are you physically mounting this? There are a fair few wires to relocate.

Aaron b · Nov 19, 2021

I noticed cef are selling these or similar as
Scolmore ClickSmart+ 100W 1 Gang Smart Switching Receiver, even less documentation though.

Mikegh · Nov 19, 2021

Are these incandescent only or led ?

Edit I see they're led

Aaron b · Nov 19, 2021

The simplest way to install this would be in the upstairs switch with a spacer behind the switch( if needed). I would disconnect the 2 core t&e and connect the red in L and the black in L1. That would power your module and allow you to control the lamp remotely. I'd take two cores preferably flex and connect them between the L1 and L2 of the switch where you just removed the 2 core. Connect those to your com and S1.