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Help! Problems with fitting a new bayonet light fitting on a lamp - photo inside to help explain the problem.

26
Found 8th May 2013
A bayonet light fitting on a lamp broke the other day and I have been fitting the replacement today but it doesn't seem to be working.
I believe I have fitted it correctly but when putting in a lightbulb it seems very loose (too loose) and I don't think the electrics are connecting with the bulb's bottom either.
I compared the new fitting to the old one and this seems to confirm that the new fitting is longer and bigger than the old one.
That was the only bayonet light fitting they had at homebase so I'm just wanting a bit of help.
Are there different sized bayonet light fittings, and if so where do I buy the one I need and what is it called?
Thank you!
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http://i844.photobucket.com/albums/ab3/sickly_sweet_photos/4BA192F8-74E5-431E-97CB-EF6492A26533-6254-000008D7AB3D7F0E_zps5ce0626e.jpg
There are two sizes of bayonet - BC = bayonet cap and SBC = small bayonet cap. Have a look at your bulb, it should say what fitting it is.
ceres

There are two sizes of bayonet - BC = bayonet cap and SBC = small bayonet … There are two sizes of bayonet - BC = bayonet cap and SBC = small bayonet cap. Have a look at your bulb, it should say what fitting it is.



It's a standard lightbulb (not the skinny one).
The lightbulb says 'Phillips ecotone 20w ambiance 220 -240v - 50 - 60Hz'
I also tried with a bog standard light bulb and the fitting was still too big.
What does the packaging on the new lampholder say about the fitting?
Have you checked the fuse in the plug?

I ask because i'm trying to work out what part of your old fitting is broke?
This is what it looks like from the top:

http://i844.photobucket.com/albums/ab3/sickly_sweet_photos/BD856488-7247-4E12-8EA1-A479CCD79508-6254-000008D882D4ED05_zpsd1e87dfe.jpg

Packaging:
http://i844.photobucket.com/albums/ab3/sickly_sweet_photos/38CA5F7D-FC93-4008-AF0F-CA60E9D7573F-6254-000008D8DDEDE997_zps4e3cb3c7.jpg
transit

Have you checked the fuse in the plug?I ask because i'm trying to work … Have you checked the fuse in the plug?I ask because i'm trying to work out what part of your old fitting is broke?



Ill give it a check now, but I fell into the lamp and snapped the old fitting which is how the old fitting broke.

It went from one piece to these 2:
http://i844.photobucket.com/albums/ab3/sickly_sweet_photos/BBED8C70-CFFC-420E-98A4-C01E731FCBDB-6254-000008D9A97505BC_zps6210096e.jpg
I can't see any reason why that lamp holder wouldn't take a BC lamp. Does it not light when you switch it on? Is the broken lamp holder quite old i.e. maybe imperial size rather than metric?
I changed the fuse - its still not working.
I don't think the brass bits in the fitting are touching the metal parts of the lightbulb, and it seems too loose.
ceres

I can't see any reason why that lamp holder wouldn't take a BC lamp. … I can't see any reason why that lamp holder wouldn't take a BC lamp. Does it not light when you switch it on? Is the broken lamp holder quite old i.e. maybe imperial size rather than metric?



5 years old, from Laura Ashley.
I've replaced the whole fitting, so I started off with 2 wires and then used these in the fitting which is why I'm wondering if the fitting is the wrong size but if you say there are only 2 bayonet sizes and I know for sure I'm using the larger, standard (not skinny) bayonet bulbs, I have no idea why this one is too big.
sickly sweet

I changed the fuse - its still not working.I don't think the brass bits … I changed the fuse - its still not working.I don't think the brass bits in the fitting are touching the metal parts of the lightbulb, and it seems too loose.




Unplug it and see if the 2 prongs depress with your fingers, they should have a spring like action which ultimately keeps the bulb in position.
transit

Unplug it and see if the 2 prongs depress with your fingers, they should … Unplug it and see if the 2 prongs depress with your fingers, they should have a spring like action which ultimately keeps the bulb in position.



They're flush with the plastic.
sickly sweet

They're flush with the plastic.




They shouldn't be, take it off again and look underneath maybe they have slipped through.
sickly sweet

They're flush with the plastic.




Just looked at your picture, those rubbers should come off i think.
I'm not even sure looking at again if the internal bits are upside down.....
transit

Just looked at your picture, those rubbers should come off i think.



No rubber, just the plastic but I think you're right, I need to invert the brass plugs so they pop up. I'll give it a go after supper as its just being served up.
transit

Just looked at your picture, those rubbers should come off i think.



I think you're right, I'll update in about half an hour after supper and see if we have light
Thank you for your help so far (and ceres).
sickly sweet

I think you're right, I'll update in about half an hour after supper and … I think you're right, I'll update in about half an hour after supper and see if we have light :DThank you for your help so far (and ceres).



Ok, np.
Thank you transit!!!!
http://i844.photobucket.com/albums/ab3/sickly_sweet_photos/F35F0F8A-D5BD-4DC3-83DE-3AB88A974228-6254-000008DB595F7DA8_zps5f163f98.jpg
Well done! A little bit of explanation on the packaging would be helpful I think.
sickly sweet

Thank you transit!!!!



Nice one, glad i could shed some light on the matter.
ceres

Well done! A little bit of explanation on the packaging would be helpful … Well done! A little bit of explanation on the packaging would be helpful I think.



Yep, it would have made life easier! All there was is this;
http://i844.photobucket.com/albums/ab3/sickly_sweet_photos/C5A02AE3-A564-40C2-937F-A1C7CA75B610-6254-000008DBEC9E884E_zps089a43f1.jpg

http://i844.photobucket.com/albums/ab3/sickly_sweet_photos/F2890D7E-188D-4346-B2DB-339F475B1CB2-6254-000008DC2C9D3BD8_zps35fd0b03.jpg
transit

Nice one, glad i could shed some light on the matter.



It was a lightbulb moment
The old bulb holder is a SBC fitting where the new one is BC. They are different sizes so will never fit. You need to buy a Small BC fitting of fit a BC bulb with the same wattage depending on what type of shade/fitting is on there.
The Therapist

The old bulb holder is a SBC fitting where the new one is BC. They are … The old bulb holder is a SBC fitting where the new one is BC. They are different sizes so will never fit. You need to buy a Small BC fitting of fit a BC bulb with the same wattage depending on what type of shade/fitting is on there.



It's all solved now
The fitting was right, it was just my putting it together which was wrong.
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