Pull a 3 core cable through with the existing 2 core & wire it with a switched live?
I think I'd have to chase a new cable in. Also, I can't see how that'd help if the fan won't work with the L jumpered to the T. But I know very little about this stuff.
I think I'd have to chase a new cable in. Also, I can't see how that'd help if the fan won't work with the L jumpered to the T. But I know very little about this stuff.