Sonoff smart switch installation

[Scotty P]

I’m trying to install a 2 channel Sonoff smart switch and I just need to figure out which one is my live wire and which is neutral wire. Any help is appreciated

 

[Scotty P]

Here’s the wiring diagram for the new switch

 

[Optimistically]

Seems like you don't have a neutral there.

Live supply in red.
Live switched on the blue
Another live switched on the white

There are smart switches available that don’t require neutrals. Search for Eachen switches. Work on the eWeLink app.

 

[Optimistically]

Seems like you don't have a neutral there.

Live supply in red.
Live switched on the blue
Another live switched on the white

Looks like a two-way switch will be complex with a smart switch.

 

[MidnightZA]

Looks like a two-way switch will be complex with a smart switch.

Nope. You install a capacitor on the lights. I have quite a few 2 gang smart switches without neutrals. I installed all of them myself and it wasn't difficult at all

 

[Optimistically]

Nope. You install a capacitor on the lights. I have quite a few 2 gang smart switches without neutrals. I installed all of them myself and it wasn't difficult at all

Um…there’s a difference between a two-gang switch and a two-way switch. I am talking about the latter.

 

[MidnightZA]

Um…there’s a difference between a two-gang switch and a two-way switch. I am talking about the latter.

Oh I misread that. But you don't need a 2 way. Install a smart switch at the first location and a blank (no output load) switch at the other end then link it with software.

Edit: You can even get a wireless touch panel for the other end. Doesn't require any wiring. Just batteries every year or so

 

[Optimistically]

Oh I misread that. But you don't need a 2 way. Install a smart switch at the first location and a blank (no output load) switch at the other end then link it with software.

Edit: You can even get a wireless touch panel for the other end. Doesn't require any wiring. Just batteries every year or so

Agreed - but if you don’t have experience in disabling a two-way switch, it’s not as straightforward as replacing a one-way switch with a smart switch…

 

[Seags]

Here’s the wiring diagram for the new switchView attachment 1421117

Because you already have the Sonoff, you'll have to pull a neutral down. It's possible to do yourself but not fun.

 

[Optimistically]

Because you already have the Sonoff, you'll have to pull a neutral down. It's possible to do yourself but not fun.

Or return it and get the Eachen if you can. And follow a wiring diagram to disable the two-way switch to be a one-way switch. Need to fix at both ends of the circuit.

 

[Seags]

Or return it and get the Eachen if you can. And follow a wiring diagram to disable the two-way switch to be a one-way switch. Need to fix at both ends of the circuit.

Yeah, this is an option too.

 

[CharlEngel]

Because you already have the Sonoff, you'll have to pull a neutral down. It's possible to do yourself but not fun.

How does that work and where do you connect it on the actual light?

 

[Optimistically]

How does that work and where do you connect it on the actual light?

You would need to identify at the light fitting which is live and which is neutral and then pull a neutral down to the switch. Far easier to buy one of the switches that doesn’t need a neutral…

 

[Snyper564]

You would need to identify at the light fitting which is live and which is neutral and then pull a neutral down to the switch. Far easier to buy one of the switches that doesn’t need a neutral…

or pay an electrician to pull neutrals - did this when installing solar and didnt look back LOOV SONOFF switches

 

[CharlEngel]

You would need to identify at the light fitting which is live and which is neutral and then pull a neutral down to the switch. Far easier to buy one of the switches that doesn’t need a neutral…

I have a standard live in and a live out but no neutral. The specific light switches I got are the ones that go best with my look and feel so swiping them out isn't really an option. I'll have to add the neutral wiring. Connecting the neutral wiring on the switch is easy but not sure where it would go on the actual light.

 

[A3@MBB]

How does that work and where do you connect it on the actual light?

Neutral only runs to the switch, not to the light as well.

 

[Went_For_Beer]

I have a standard live in and a live out but no neutral. The specific light switches I got are the ones that go best with my look and feel so swiping them out isn't really an option. I'll have to add the neutral wiring. Connecting the neutral wiring on the switch is easy but not sure where it would go on the actual light.

Or put the switch in the roof where the neutral is

 

[Syphonx]

I have a standard live in and a live out but no neutral. The specific light switches I got are the ones that go best with my look and feel so swiping them out isn't really an option. I'll have to add the neutral wiring. Connecting the neutral wiring on the switch is easy but not sure where it would go on the actual light.

The light will have a neutral wire to it already (else it wouldn't work). Neutral wires aren't always run to the switch box to save costs, mechanical light switches don't need the neutral.

So you can find the neutral wire in the ceiling, cut it and add a add a connector block to add another wire to run down to your light switch box (whether this is compliant with latest electrical standards I cannot say).