Switch is switch

Question

The issue concerns 2 bedrooms that operate on different switches, obviously, but have different results than expected.
The combinations are as follows:
          Switch A            Switch B            Light A         Light B
1:              off                        off                      off                  off
2:             on                        off                      on                  on (dim)
3:             off                        on                      off                  on
4:             on (1st)               on (2nd)            on                  on (turns 
                                                                                          OFF light A)
5:             on (2nd)             on (1st)               off                  on

Sorry, but this is the only way I can explain.
I think a little rewire is called for?

Ragards John.

James · Accepted Answer

Hi John. Has this always been like this or have you recently changed the light fittings?

Manhar · Answer

As a Electition I think someone has swapped the wires while installing switches so it ain’t a big job just wires needs to be swapped

Del · Answer

are they standard lights and switches? what happens if you remove  each light/led and perform switching sequence?

Rzgar · Answer

you have DALI system (Digital Addressable Lighting Interface)

Aurel · Answer

Hi John 
we can gladly arrange a visit free of charge to provide with a quote for the repair . 
We expect it to be something really minor 
Best wishes

Mike · Answer

It sounds worse than it probably is probably just one cable wrong just needs disconnecting and belling the cables out to see what does what

Ian · Answer

HI John, definitely sounds like a bad DIY installation.  there is no way the lights should interact (ie cause issues with another rooms lights.). You dont need a rewire but you do need someone who knows what they are doing.    Cant give an idea of what it would cost as its impossible to know what has been done wrong until it is investigated.   Regards Ian.

Christopher · Answer

No rewire needed John, my guess is that the switch wires and loop have been crossed over somewhere. Very common diy mistake. 
Any electrical needs you may have:

Switch is switch

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