DIYnot
Local | Network
   DIYnot > Forums
Local | Network
DIYnot Network Local DIYnot Network Local  
  Forum IndexForum Index     RulesRules    HelpHelp     Join FREERegister Free     About CookiesCookies     SearchSearch     LoginLogin 

Flashing Light

Goto page 1, 2  Next
 
Post new topic   Reply to topic    DIYnot.com Forum Index > Electrics UK
Search this topic :: View previous topic :: View next topic  
Author Message
radsik

from United Kingdom

Joined: 21 Mar 2008
Posts: 37
Location: Norwich,
United Kingdom

PostPosted: Sat Apr 26, 2008 4:45 pm Reply with quote

I have a strange problem that I hope someone can help me with.

The light on my landing flashes on and off when the switch is in the off position, I think if I change the positions of the light switch downstairs it stops but as it is totally random I have not been able to actualy confirm this, the switch downstairs controls both the lounge light and landing which are on seperate rings. In addition to this the smoke alarm started randomly going off in short bursts last night, this takes it 's power from the landing light so i am thinking it is connected to the flashing bulb.

My take is that the switch downstairs is faulty, letting current pass through from the downstairs to the upstairs ring giving the bulb (compact flourescent) a short 'pulse' of power. As it is a 15 quid switch I don't really want to replace unless I am sure it is at fault icon_smile.gif

Thanks for any help.
Tim
Back to top
 Alert Moderators

If you do not want to see this advert, click here to login or if you are new click here to join free.
breezer

from United Kingdom

Joined: 03 Jan 2003
Posts: 23328
Location: Sussex,
United Kingdom
Thanked: 27 times

PostPosted: Sat Apr 26, 2008 5:03 pm Reply with quote

life is like that, CFL's will do as you have when on a 2 way cct.

easiest solution is to change the lamp to a non cfl icon_cry.gif
Back to top
 Alert Moderators
radsik

from United Kingdom

Joined: 21 Mar 2008
Posts: 37
Location: Norwich,
United Kingdom

PostPosted: Sat Apr 26, 2008 5:15 pm Reply with quote

ok, thanks, is it likely to be related to the smoke? If that is a seperate issue then I will replace it.
Back to top
 Alert Moderators
daytona

from United Kingdom

Joined: 02 Nov 2007
Posts: 697
Location: United Kingdom

PostPosted: Sat Apr 26, 2008 5:18 pm Reply with quote

it sounds like capacative coupling,its not dangerous and you dont have any faults.dont worry about it.
please dont replace it with a normal lamp,were trying to get away from pointless wastes of energy icon_wink.gif
Back to top
 Alert Moderators
securespark

from United Kingdom

Joined: 11 Jan 2004
Posts: 25057
Location: Cheshire,
United Kingdom
Thanked: 431 times

PostPosted: Sat Apr 26, 2008 5:43 pm Reply with quote

15 switch?

It's not a dimmer is it? icon_eek.gif
Back to top
 Alert Moderators
radsik

from United Kingdom

Joined: 21 Mar 2008
Posts: 37
Location: Norwich,
United Kingdom

PostPosted: Sat Apr 26, 2008 6:29 pm Reply with quote

Thanks for the replies. It's not a dimmer, just a 2g toggle type switch.

If it's not dangerous thats great but my main concern now is the smoke alarm going off randomly. It has happened a few times now, including at 3am last night which scared the **** out of me and the wife, my daughter slept through it somehow even though it's outside her room icon_confused.gif
Back to top
 Alert Moderators
breezer

from United Kingdom

Joined: 03 Jan 2003
Posts: 23328
Location: Sussex,
United Kingdom
Thanked: 27 times

PostPosted: Sat Apr 26, 2008 6:57 pm Reply with quote

cfl lamps flashing can be anoying, do change it its only 1 lamp.
Back to top
 Alert Moderators
securespark

from United Kingdom

Joined: 11 Jan 2004
Posts: 25057
Location: Cheshire,
United Kingdom
Thanked: 431 times

PostPosted: Sat Apr 26, 2008 9:43 pm Reply with quote

Kids and teenagers can sleep right through these things - research & experiments has been done in the States to prove that they sleep through ordinary alarms.

What wakes them is an alarm with a recorded message, ie parent's voice saying "WAKE UP (NAME), THERE IS A FIRE, etc"

http://bluegenie.eu/smokealarm.asp
Back to top
 Alert Moderators
Lectrician

from United Kingdom

Joined: 18 Jul 2004
Posts: 7532
Location: Devon,
United Kingdom
Thanked: 281 times

PostPosted: Sun Apr 27, 2008 8:19 am Reply with quote

Press and hold the test button for ten secs on the smoke. If that doesn't work, most likely the battery.
Back to top
 Alert Moderators
mdbalson

from United Kingdom

Joined: 03 Sep 2006
Posts: 709
Location: Kent,
United Kingdom

PostPosted: Sun Apr 27, 2008 1:50 pm Reply with quote

breezer wrote:
life is like that, CFL's will do as you have when on a 2 way cct.

easiest solution is to change the lamp to a non cfl icon_cry.gif


Do CFL's do that then when on 2w SW icon_question.gif As at home both of my landing lights are on 2w SW's, but they do not flash.
Back to top
 Alert Moderators
radsik

from United Kingdom

Joined: 21 Mar 2008
Posts: 37
Location: Norwich,
United Kingdom

PostPosted: Sun Apr 27, 2008 3:18 pm Reply with quote

Lectrician wrote:
Press and hold the test button for ten secs on the smoke. If that doesn't work, most likely the battery.


Done that a few times and it always works on a test, it is a mains one and it's connected to the flashing light so was not sure if that is related to it going off.
Back to top
 Alert Moderators
mattylad

from United Kingdom

Joined: 26 Apr 2008
Posts: 4087
Location: United Kingdom
Thanked: 123 times

PostPosted: Sun Apr 27, 2008 3:27 pm Reply with quote

I have this, but on the whole lighting circuit.
(all cfl's flash).

But it seems that although there is an earth in the fittings, roses etc, there is no actual aearth in the feed wire from the CU, so its floating!
(yet another job for me to fix).

Oh the fun of old houses..... icon_wink.gif
Back to top
 Alert Moderators
Spark123

from United Kingdom

Joined: 02 Jun 2005
Posts: 14240
Location: Cumbria,
United Kingdom
Thanked: 406 times

PostPosted: Sun Apr 27, 2008 3:39 pm Reply with quote

mdbalson wrote:
breezer wrote:
life is like that, CFL's will do as you have when on a 2 way cct.

easiest solution is to change the lamp to a non cfl icon_cry.gif


Do CFL's do that then when on 2w SW icon_question.gif As at home both of my landing lights are on 2w SW's, but they do not flash.


Depends on a few factors i.e. how the 2 way lighing is wired and length of the switch wire cables.
If anyone wants to try an experiment to see if this overcomes it: http://www.diynot.com/forums/viewtopic.php?p=726034#726034
Back to top
 Alert Moderators
Spark123

from United Kingdom

Joined: 02 Jun 2005
Posts: 14240
Location: Cumbria,
United Kingdom
Thanked: 406 times

PostPosted: Sun Apr 27, 2008 3:41 pm Reply with quote

mattylad wrote:
I have this, but on the whole lighting circuit.
(all cfl's flash).

But it seems that although there is an earth in the fittings, roses etc, there is no actual aearth in the feed wire from the CU, so its floating!
(yet another job for me to fix).

Oh the fun of old houses..... icon_wink.gif


Yeah, needs fixing asap if you have any metal fittings, light switches, back boxes etc.
Back to top
 Alert Moderators
mattylad

from United Kingdom

Joined: 26 Apr 2008
Posts: 4087
Location: United Kingdom
Thanked: 123 times

PostPosted: Sun Apr 27, 2008 3:45 pm Reply with quote

OH yes it does.
They have 130v ish from N to E icon_biggrin.gif
Back to top
 Alert Moderators
Search this topic :: View previous topic :: View next topic  
Post new topic   Reply to topic    DIYnot.com Forum Index > Electrics UK All times are GMT
Goto page 1, 2  Next
Page 1 of 2

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
Similar Topics   Replies   Views   Posted 
Flashing Energy Saving Light with the light switch OFF 22 14320 Thu Dec 14, 2006 4:47 pm
Kitchen Light flashing 19 820 Mon Jan 18, 2010 7:34 pm
Flashing Light 3 100 Sat Aug 04, 2012 10:29 pm
3 gang 2 way light switch flashing issue 8 160 Wed Sep 12, 2012 10:03 pm
Bathroom light flashing? 7 580 Thu Jan 22, 2004 6:36 am


 
DIYnot
Find an Expert | Find a Supplier | Search DIYnot.com
Network | Advertising | Newsletter
DIY | DIY How To | @home | DIY Wiki | DIY Forum
By using this site you agree to our Terms of Service / Disclaimer.
Please read our Privacy Policy. Copyright © 2000-2014 DIYnot Limited.