Bathroom lighting and fan query...!!

[mgzr]

out of interest, i doubled up both switch wires (blue and yellow) on one switch, and re engergised the circuit. this time around, the lights didn't work at all but the fan operated with the switch....

 

[Des 56]

so you're saying potentially the live feed goes into one of the switches on the common and links across to the other switch on the 'L1' terminal...?!

shouldn't make a difference......?!?!

No,if you have your link in L2 instead of off the feed in the common , you have a simple changeover
I was just suggesting that silly mistakes can and do occur,it seems to me this thread almost definitely suggests a changeover and there is only one place that is going to occur

 

[Wilko]

If the wiring was as per dwg then there wouldn't be this problem, I think.

 

[mgzr]

i can see your thinking....

however, i can throw the light switch and the yellow become live (230v - and lights come on) then throw the fan switch and the blue becomes live and fan starts up but yellow switch wire remains live but lights go out......

 

[westward10]

If the wiring was as per dwg then there wouldn't be this problem, I think.

This is what I don't understand the live feed is solid between the switches and as long as one is in common and the other L1 or L2 the other switch should have no affect on it. Effect or affect, I never know

 

[Wilko]

Ha ha, my fav is :

A is different from B
Or
A is different to B

Good thing I can add up ok

 

[Midwest]

Still think somehow, you are introducing a voltage at the lights neutral, when turning on the fan. Think you just need to check all your connections are correct.

 

[westward10]

Connect them to the same switch and see what happens.

 

[buzzlightyear]

to an adaptable box (fitted with din rail

loop in from the switchs is better .

 

[mgzr]

Connect them to the same switch and see what happens.

i have double up both switch wires and the fan turns on and off with the switch, but the lighting does nothing....

 

[Wilko]

Guessing from afar, what should be the light neutral is actually connected to the incoming unswitched live.

 

[Richard Burns]

If your connections are correctly positioned then the only thing I can think is to check is that neutral connections on the DIN rail are correctly connected, if one (probably the incoming) were only just in contact then it may not be able to carry the current of both items, however this would be an extraordinarily precise partial disconnection.
I woudl tend to go for a wiring error myself, check continuity when the circuit is dead to see what you get in different switch positions and see if you have continuity along cores between points.