Shower cubicle light

[pooksahib]

Hi. My sister's shower cubicle light has lasted 25 years but has now died. I've never seen this fitting before so I'm hoping someone can tell me the correct way to change the bulb. I've tried turning the rim just above the glass but there's no immediate 'give' and I don't want to force it.
There are multiple screws going into the ceiling (should it be necessary to take the whole thing off) but I've also highlighted a single screw on the side of the fitting - no idea what that's for...

All guidance gratefully accepted. Thanks!

 

[RandomGrinch]

Hi,

I may be wrong, but I would have a go at removing that grub screw, and then try twisting off the cylindrical enclosure.

Good luck!

...although many may consider replacing the whole fitting!

 

[pooksahib]

Thanks, RG. The removal of the grub screws (there are 2) lets me pull the whole unit out, exposing the wiring. To get to the bulb must surely be by twisting the rim around the glass. Would a loosener such as WD40 help does anyone think (the unit is plastic, not metal)?

 

[RandomGrinch]

Thanks, RG. The removal of the grub screws (there are 2) lets me pull the whole unit out, exposing the wiring. To get to the bulb must surely be by twisting the rim around the glass. Would a loosener such as WD40 help does anyone think (the unit is plastic, not metal)?

So, with the grub screws removed the cylinder comes down and the ring stays on the ceiling? In that case, then yes the front must come off!

It may sound extreme, but if there is a connector block where the wires are exposed, it may be simpler to take the whole fitting down and play with it at your convenience!

Some WD40 (although not a penetrating oil) and some (very) gentle heat from a hair dryer, could help you unscrew the rim?

 

[pooksahib]

Sorted. The WD40 loosened it. Not an anticlockwise screw as I was expecting (like a jam jar) but a clockwise 2cm turn then pull down.
Thanks, RG.

 

[RandomGrinch]

Well done!