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leonski



Member Since: 14 Dec 2009
Location: Northumberland
Posts: 205

United Kingdom 2015 Defender 110 Puma 2.2 USW Corris Grey
lights blowing fuse....
Dear All,

Has anyone any idea what could be causing this......
I upgraded the headlight bulbs a while ago with some from Halfraud's. They have been fine for months but I have just noticed that my full beam on the drivers side is out and blowing the fuse (immediately).
Today I replaced them with some new Philips bulbs, everything worked fine when I tested them...until I put the side lights and indicators back in!....fuses still blowing......

Has anyone any idea? I would really appreciate any advice.

Cheers,

Leon.
Post #82598 29th Jul 2011 9:53pm
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markb110



Member Since: 22 May 2010
Location: Guildford
Posts: 2525

England 2002 Defender 90 Td5 HT Epsom Green
Hi

I had something similiar in the past,

Check the rear number plate light bulbs as they may have moved - the fitting is pants and hence the bulb moves and pops the fuse.

To fix this i used a couple of zip ties to secure the bulbs to the mount.

Good luck

Mark
Post #82600 29th Jul 2011 10:02pm
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nicknick



Member Since: 28 Feb 2011
Location: halifax
Posts: 30

England 2010 Defender 90 Puma 2.4 CSW Tonga Green
Hi Leonski

for something to blow a fuse it means the live wire must be touching earth ie bodywork somewhere.
so it needs to be traced in a logical way, i would start by disconnecting the headlamp which is not working then replace the fuse and turn the headlights on leaving that one disconnected.
if the fuse blows again the wiring has rubbed somewhere, if it doesnt blow then you have a faulty bulb.

its a start and i hope you find your problem Thumbs Up
Post #82601 29th Jul 2011 10:07pm
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kingofthesparks



Member Since: 06 Jan 2011
Location: Very close to Watford gap services , northants
Posts: 987

United Kingdom 2012 Defender 90 Puma 2.2 HT Fuji White
is it not under warranty ?
Post #82602 29th Jul 2011 10:14pm
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leonski



Member Since: 14 Dec 2009
Location: Northumberland
Posts: 205

United Kingdom 2015 Defender 110 Puma 2.2 USW Corris Grey
Thanks for your replies guys...

I will investigate further today.
It is under warranty, but it is a 65 miles round trip and probably half a day or so of hanging around....I was hoping that there may be a simple solution!

Cheers
Leon.
Post #82615 30th Jul 2011 6:31am
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Happyoldgit



Member Since: 14 Sep 2007
Location: Norfolk
Posts: 3471

United Kingdom 2015 Defender 110 Puma 2.2 USW Corris Grey
What sort of upgraded bulbs and how much additional load are they putting on what after all is marginal wiring and switchgear anyway?

If it was ok before you replaced the bulbs it's either that you've disturbed something, or there was a pre existing fault. Check the wiring and associated components and it may be worth trying standard bulbs again. Steve.
Owned numerous Land Rover vehicles of all shapes and sizes over the decades.
Current Defender: A non tarts hand-bagged Puma 110 XS USW.

[Insert something impressive here such as extensive list of previous Land Rovers or examples of your prestigeous and expensive items, trinkets, houses, bikes, vehicles etc]

http://forums.lr4x4.com

I used to be Miserable ...but now I'm ecstatic.
Post #82619 30th Jul 2011 8:55am
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DAZ110



Member Since: 06 Dec 2007
Location: East Sussex
Posts: 2005

United Kingdom 2013 Defender 90 Puma 2.2 XS CSW Barolo Black
One of my headlamps kept blowing the fuse, turn out to be wiring had rubbed on the wing edge under the bonnet in the back left hand corner of the engine bay next to the ABS pump.

I did post about it on the foram somewhere before to warn others in case it happened to them.
Post #82622 30th Jul 2011 9:19am
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Grockle



Member Since: 24 Nov 2008
Location: Peak District National Park
Posts: 2266

United Kingdom 2008 Defender 90 Puma 2.4 XS CSW Tonga Green
could be pulling to much current through now,I had this on an Audi some years ago I had to up the fuse by 5 amps to stop it blowing 2.4 90 XS
1968 1/32 scale Britains 109 Pick up.
Post #82625 30th Jul 2011 9:29am
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K9F



Member Since: 12 Nov 2009
Location: Bournemouth
Posts: 9610

United Kingdom 2008 Defender 90 Puma 2.4 XS CSW Stornoway Grey
Grockle wrote:
could be pulling to much current through now,I had this on an Audi some years ago I had to up the fuse by 5 amps to stop it blowing


Good joke!! If it's pulling too much current either the wrong fuse was fitted or you have a fault!!! Laughing

Generally 'good working practice' is that the fuse rating should't be more than 1.5 times the working current of the circuit it's providing or round up to the next amp if it is a designated circuit that will have a single application! It can be worked out using the following formulas:

Power (Watts) = Voltage X Current

Voltage = Current X Resistance

For certain circuits (for example electric motors) HT or what is known as 'anti rupture' fuses should be used as the instantanious starting current exceeds the normal operating current of the circuit. These fuses have the filament supported in a medium such as sand or porcelain to dissipate heat and prevent the fuse from rupturing on initial start up.

Hope this helps. If you go through life with your head in the sand....all people will see is an ar5e!!

Treat every day as if it is your last....one day you will be right!!
Post #82632 30th Jul 2011 10:27am
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Grockle



Member Since: 24 Nov 2008
Location: Peak District National Park
Posts: 2266

United Kingdom 2008 Defender 90 Puma 2.4 XS CSW Tonga Green
I see your plugged in to day Mal Thumbs Up 2.4 90 XS
1968 1/32 scale Britains 109 Pick up.
Post #82633 30th Jul 2011 10:32am
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K9F



Member Since: 12 Nov 2009
Location: Bournemouth
Posts: 9610

United Kingdom 2008 Defender 90 Puma 2.4 XS CSW Stornoway Grey
Grockle wrote:
I see your plugged in to day Mal Thumbs Up


'Plugged in' and charging at a rate of 1 amp per hour protected by a suitably rated anti surge fuse! Rolling with laughter

Off Topic Feel like a flippin' vampire working constant nights from now til October. Fancy popping out for a bite?

Laughing If you go through life with your head in the sand....all people will see is an ar5e!!

Treat every day as if it is your last....one day you will be right!!
Post #82635 30th Jul 2011 10:39am
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leonski



Member Since: 14 Dec 2009
Location: Northumberland
Posts: 205

United Kingdom 2015 Defender 110 Puma 2.2 USW Corris Grey
Thanks for all your advice!

Found the problem!
The wire had rubbed through on the inner wing!
The cable really should have some trunking on it, and as Daz said, I would advise everyone to check theirs.
Its a pretty shoddy lack of attention to detail by LR!

Sorted!

Cheers,

Leon
Post #82648 30th Jul 2011 12:44pm
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