After a google for how to do this, I only found answers telling me there was clips either side of the silver rim (which there aren't on this one) or that it can twist off anti-clockwise (but it didn't look like it wanted to give at all and I feel if I push it, it'll just break).
I can't see any inner ring to twist instead, so I'm rather at a loss. I think they came from B&Q but my builder at the time bought them and he did show me how to change them, but that was 3 years ago and I've forgotten. When I put it out of the ceiling hole, it looks like there's a couple of holes either side of the thing which are above where the inside clips are, but I don't recall having to stick anything in them if that was the case.
A picture from below the unit is, erm.... below, but it might not help too much. It's the best I could take though. Thanks in advance for any help.
I can't see any inner ring to twist instead, so I'm rather at a loss. I think they came from B&Q but my builder at the time bought them and he did show me how to change them, but that was 3 years ago and I've forgotten. When I put it out of the ceiling hole, it looks like there's a couple of holes either side of the thing which are above where the inside clips are, but I don't recall having to stick anything in them if that was the case.
A picture from below the unit is, erm.... below, but it might not help too much. It's the best I could take though. Thanks in advance for any help.
