Waiting ZVARA sensor fan batbroom live feed issue Ask questions and find answers to many subjects relating to electrics and electrical work

[petediyer]

Part 1.



I Have 2 red wires and one brown going into my ceiling pull chord UK light switch in bathroom. BROWN AND RED into L1 and RED into COM. Will test when get my meter (assume I need pull out joint wired wires first to seperate and run an earth into bathroom first before I try test .) but can anyone suggest what wires each is likely to be and why there are two in L1.



PART 2.

Reason I ask is that I want to replace my fan with a constant live zvara,(Bluetooth controlled/with sensors to turn on so not to rely on light switch ) but currently the configuration above then leads then to an isolator switch (there must be I assume a junction or loop box in between buried In wall I'm yet to see) as the isolator switch then has the 3 wires going in and out, black Brown grey.

I've tested these and oddly the result is that GREY is the PL The black the Neutral and the brown the SL.

So with this in mind I have fed the Grey PL into Live and and black into N and capped the brown SL into the zvara fan. BUT.. when the light is switched off its killing the current to the fan dead. Thus switching off the PL

(to note I did have the brown and black plugged into the live (on seperate occasions to test) on the fan and grey into neutral and... All scenarios turned the fan on and it ran, and but turned off when the light switch was turned off!?

Can anyone suggest the configuration that's causing the live feed to lose power With the light switch off... As when off both grey black and brown all have zero V.. Light on grey has 230v.

How do I ensure the live is constant and no longer impacted by the light switch being turned off.

Thanks all

[Mr White]

The brown at the switch is switched live, so when the light comes on, the fan also runs. Take out the brown from L1 and put it in Com, with the other red wire.

[petediyer]

OK Great..

So what is the red wire in L1 and the red wire in COM?

so when I move the SL to COM that then will mean the PL feed will be A constant to the fan and it will be able to run fan independently of whether light switch is on or off l.

Cheers for the direction

[petediyer]

OK I moved the SL to the COM socket in the switch but that has had no effect to the functioning of the fan. The fan will still only start when the light is switched on.

As per the initial posting I'm seeking to nagate the Need for the light switch to impact a live feed constantly feeding the fan.

Thanks

[Mr White]

As per the initial posting I'm seeking to nagate the Need for the light switch to impact a live feed constantly feeding the fan.

I did read and understand your first post.
As I am not there, all I (Or anyone) can do is make an educated guess what the wires actually do.

You really need a way of testing what wire does what.

[petediyer]

No I appreciate that just advising the result emphasising the request as ultimately what I'm seeking is to understand is, Q1. can a light socket switch feeding a fan provide the ability to allow a fan to still act independantly of the switch. If so given my configuration which wire needs to be in which socket in the light switch given what I've shown for the isolator and fan . (forget colours, but where does the PL SL And neutral need be in the light socket.

Isolator:
L1 - GREY / PL
L2 - BROWN / SL
L3 (N) - BLACK / NEUTRAL

FAN:
LIVE Socket - GREY /PL
Neutral socket - BLACK / Neutral
SL wire capped and unused.

Q2. So what is the matching configuration in the light switch, to L1, L2 & COM with PL/SL/Neutral

Assume I then need unattach each wire from sockets and test with meter which is PL SL And neutral and insert into based on tr response to Q2.

Thanks

[petediyer]

No I appreciate that just advising the result emphasising the request as ultimately what I'm seeking is to understand is, Q1. can a light socket switch feeding a fan provide the ability to allow a fan to still act independantly of the switch. If so given my configuration which wire needs to be in which socket in the light switch given what I've shown for the isolator and fan . (forget colours, but where does the PL SL And neutral need be in the light socket.

Isolator:
L1 - GREY / PL
L2 - BROWN / SL
L3 (N) - BLACK / NEUTRAL

FAN:
LIVE Socket - GREY /PL
Neutral socket - BLACK / Neutral
SL wire capped and unused.

Q2. So what is the matching configuration in the light switch, to L1, L2 & COM with PL/SL/Neutral

Assume I then need unattach each wire from sockets and test with meter which is PL SL And neutral and insert into based on tr response to Q2.

Thanks

Ps or is the feed to isolator not coming off the Light switch but the maybe the light?