Why Is Light Not Working?

[djspeedy]

I have two matching front room lights that are operated by a 2 gang dimmer switch. The right light operated by the right button has stopped working. The left one is fine. I can't figure out the problem. Help would be appreciated.

I've swapped the two lights (the entire fixtures and bulbs) and it is still the right light that doesn't work so I know it isn't the bulbs or the light fixtures themselves.

I have flipped the switch so the lights are now operated by the opposite button but it's still the right light not working so not the switch.

Multimeter showing 237v at the switch for both lights so can only assume a problem with the circuit from the switch to the light or am I missing something?

 

[TJ Anderson]

When you tested, were you getting 237v between L-E or L&N at your switch? (BTW, you may not even have a neutral conductor at your switch)

Testing at the fitting would give you best indicator of what is going on and you can then determine whether it is a lost line or lost neutral that is the issue.