Again, thanks all for the advice.
The coil contacts are the top (not the left) and the switch contacts are at the bottom. The relay is there to prevent the switched live from the downstairs bathroom feeding back into the upstairs lighting circuit and turning the lights on.
This is what was happening when I bought the house (every house in the street is wired in the same crazy way!!). The two bathrooms share a single fan. I cured it by changing the downstairs light switch for a doouble pole switch - (the upstairs one was double pole already) - but now I want to make the upstairs dimmable and you can't get a double pole dimmable pull cord. The relay was just a way of keeping the two circuits seperate.
Is there anyway this would work or am I flogging a dead duck?
The coil contacts are the top (not the left) and the switch contacts are at the bottom. The relay is there to prevent the switched live from the downstairs bathroom feeding back into the upstairs lighting circuit and turning the lights on.
This is what was happening when I bought the house (every house in the street is wired in the same crazy way!!). The two bathrooms share a single fan. I cured it by changing the downstairs light switch for a doouble pole switch - (the upstairs one was double pole already) - but now I want to make the upstairs dimmable and you can't get a double pole dimmable pull cord. The relay was just a way of keeping the two circuits seperate.
Is there anyway this would work or am I flogging a dead duck?