Hello
I had Schneider Electric Pendants fitted for my hall , stairs & landing lights. I wanted to change them as the bulbs weren't lasting very long
I swapped the pendants, for standard ceiling pendants.
The lights are controlled by 4 switches.
1 in the hall which turns the hall light on/off downstairs
1 on the stairs turns on/off the landing lights upstairs
2 on the landing turn on/off the landing lights upstairs
Now the light in the hall works fine, but the switch on the stairs & the 2 on the landing do not turn the landing lights on or off at all.
I have only swapped the pendants & not messed with the switches at all
What could be wrong?