After having some plastering done the plasterers replaced the hall and landing light switches and since then the switching has not operated properly between floors, although the light still works
3 single switches serve one light socket with the following cables
Hallway
Red to Com
Yellow to 1way
Blue to 2way
First floor landing
Two cables
Both Reds to Com
Both Yellows to 1way
Both Blues to 2way
2nd floor landing
Red to Com
Yellow to 1way
Blue to 2way
There isn’t any Black or Red cabling. Is that right?
Thanks
3 single switches serve one light socket with the following cables
Hallway
Red to Com
Yellow to 1way
Blue to 2way
First floor landing
Two cables
Both Reds to Com
Both Yellows to 1way
Both Blues to 2way
2nd floor landing
Red to Com
Yellow to 1way
Blue to 2way
There isn’t any Black or Red cabling. Is that right?
Thanks