12v at car but not in van

Jun 23, 2014
16
0
0
Visit site
Hi All,
I have all the necessary outputs from the car grey socket and all still live when I check the grey plug (tested by avo meter with outer cover removed) but when I check the fuse panel in the caravan there is no 12v input. One of the cables is the live from the grey lead and the other end of the fuse is a wire going to a relay, to that end I have no battery charging or lights or electronic cooker ignition with the grey socket plugged into the car, be it running or not! Is the relay at fault?
Advice appreciated
Regards Kenny
 
Jun 23, 2014
16
0
0
Visit site
Hi Paul, across where the fuse would be. It is a 2004 Sterling Eccles Opal. For info across the fridge input where the fuse sits is the expected 13.84V
Thanks
 
Jun 23, 2014
16
0
0
Visit site
The top 20amp fuse and yes taking it out and measuring across the terminals. The fuse box does not have a make and I cannot see how I add a photo to a post. Your help is appreciated
 
Mar 13, 2007
1,750
0
0
Visit site
I think Paul is refering to the make and model of the charge unit!!! not the fuse, in order to post a photo you have to have a photobucket or similar account and post via a web link. see the sticky post here. http://www.practicalcaravan.com/forum/our-website/48966-how-to-photos
 
Jan 10, 2013
18
0
0
Visit site
Measuring across a fuse to determine voltage is not a reliable thing to do. You would measure across a fuse with an ammeter to measure current not voltage. If the load side that the fuse feeds is off then you would not measure a voltage. You should measure these pins relative to 0V/battery negative.

You should start by finding the cable that comes into the vehicle and making sure that the voltage is gettig to that and then tracing it through each unit/wire.

HTH

Paul
 
Mar 14, 2005
17,557
3,051
50,935
Visit site
This thread is worrying me a bit. The OP tell us he has an AVO meter, yet he is trying to measure a voltage across a fuse carrier. Any person who has a reasonable knowledge of electrics or electronics would know how to interpret the result. The questions passed too-and-fro suggest there is a lack of knowledge.

Even though there is little risk of an electric shock from working with 12V dc, there is still a risk of fire from overheating if a wrong connection is made.

I think its about time the Colonel bit the bullet and gets a competent fitter to investigate and put it right.
 
Mar 13, 2007
1,750
0
0
Visit site
Sorry John I don't agree, the prospect of starting a fire by using a meter is almost laughable. the only thing the OP is doing wrong IMHO is by using both ends of the meter wires instead of one (red) while the other end (black) is attached to the return/earth, to find where the power is cut, Paul has this spot on, work from the plug (last known place there is power) "should be the green one from pin 4" and work backwards, doing the same from the battery (if fitted). there will be a place where the power stops. this will be where the fault is either a hidden fuse or the charge unit.
agreed the testing of voltage across a fuse is illogical unless one is testing the fuse itself but using a ammeter will confirm the current draw and the suitability of the fuse fitted.
 
Jun 23, 2014
16
0
0
Visit site
Please let me clarify where I am with this to avoid the confusion I seem to have caused, I have tested the DC voltage at the caravan side of the grey plug when connected to the car and it reads 13.84V where it should, I have disconnected the cables at the fuse box inside the caravan and tested them and both still register 13.84V (that is into the caravan and the fridge circuit) When I reconnect them to the fuse box and start the car engine neither of them show any current being drawn across the fuse which indicates to me (and I am happy to be corrected) is that neither the battery charger or fridge is working on DC Power. Both however work on AC power. To that end is there anything else I need to check before getting a 'pro' in. I cannot see the 12V element behind the fridge and am unwilling to remove it as it involves gas pipes so cannot move forward with the fridge and the battery charger is internal to the power supply unit in the wardrobe as opposed to a separate unit (at least it looks that way without withdrawing the whole unit).
Any advice is gratefully appreciated.
Best regards Kenny.
PS I was using a multimeter not an AVO, apologies :)
 
Mar 13, 2007
1,750
0
0
Visit site
right got that, so there is power at the fuse when connected to the car, "but not when the engine is running!!" but none when it is running!!! have you tried testing the wire further back towards the car "where it enters the van" with and without the engine running as this would show a fault in the cars smart relay,
second the back of the fridge is accessible by removing the fridge vents, you should be able to see the 12v wire going into the fridge, ok, using the pointy bit of the red probe with the black probe connected to the return poke though the outer wire so the probe touches the inner cable, if there is power going to the fridge it will register a current even if the element is blown if no current it is not the element but the power feed.
 
Jun 23, 2014
16
0
0
Visit site
Colin, no, there is 12.odd volts at the fuse box end of the cables with the engine off and 13.84 at the fuse box end with the engine on, that is how it is supposed to be I believe. When I then reconnect the cables to the fuse box there is still 13.84 volts but no amps being drawn by either circuit. There are two cables marked only for 12v which I can identify at the back of the fridge when I remove the grills but that is as far as I have got with it, a recent service the guy reckoned the 12v element could be at fault. Thanks for your post
 

Damian

Moderator
Mar 14, 2005
7,510
936
30,935
Visit site
You have now wasted over a week and got nowhere.

Although a service person has guessed that the 12v element has failed, without checking it , it is only a guess.

Get a mobile engineer out to look at it, all you are doing is confusing yourself and everyone trying to help you as you do not know what to look for or where to start identifying what Is wrong.

Sounds harsh I know, but give yourself a break and lessen the chances of a heart attack and get someone in to sort it out.

Find an engineer here: http://www.approvedworkshops.co.uk/search/
 
Mar 13, 2007
1,750
0
0
Visit site
fair enough Kenny, I think thats as far as we can go, let us know what the engineer does to sort it, although having dabbled in wiring systems for 30years and built numerious ones from scratch I would be very supprised if the fridge element was causing problems with other circuits there must other faults afoot.
hope it is not too expensive to rectify good luck mate!!.
colin
 
Jun 2, 2017
141
0
0
Visit site
yeezy boost 350
jerseys cheap
coach outlet online
heat jerseys
phillies jerseys
cowboys jerseys
hermes bags
discount nike shoes
oakley sunglasses outlet
michael kors outlet store
louis vuitton bags
yeezy boost
mont blanc pen
michael kors outlet
adidas uk
birkenstock outlet
louboutin pas cher
nike outlet
toms
burberry outlet online
kate spade handbags
purs jerseys
adidas outlet store
cheap jerseys
toms
coach factory outlet online
coach factory outlet online
cheap nike sneakers
nfl jerseys
coach factory outlet online
louboutin outlet
longchamps
air max outlet
ralph lauren sale
adidas running shoes
coach handbags outlet
birkenstock shoes
coach outlet online
true religion
pandora charms
fitflop shoes
nike outlet store
ralph lauren outlet
adidas nmd r1
coach factory outlet online
yeezy shoes
air max
nike outlet store
michael kors outlet store
coach outlet online
michael kors
coach factory outlet online
coach outlet store online clearance
hermes bag
kate spade bags
moncler uk
coach factory outlet online
versace
cheap jordans for sale
prada outlet online
michael kors outlet store
ralph lauren outlet online
coach outlet store online
louis vuitton factory outlet
gucci borse
mont blanc pen
swarovski sale
coach outlet online
kate spade outlet online
mulberry uk
michael kors outlet store
coach purses
jordans
tory burch outlet online
adidas outlet online
coach factory outlet
giants jerseys
adidas nmd runner
gucci outlet online
adidas nmd runner
adidas outlet store
yeezy boost 350
beats by dre
rolex replica watches
nike outlet
moncler uk
gucci handbags outlet
ralph lauren sale
coach outlet store
kd shoes
cheap jordan shoes
polo ralph lauren outlet online
sac longchamp
burberry outlet store
ralph lauren outlet
kate spade outlet store
harden shoes
pandora jewelry
pandora charms sale clearance
michael kors handbags outlet
polo ralph lauren
christian louboutin
dansko outlet
texans jerseys
ralph lauren sale
fitflops
fendi bags
air max 90
dodgers jerseys
eltics jerseys
louis vuitton outlet online
longchamp bag
rolex replica watches for sale
chaussures louboutin
nike free 4.0 flyknit
rolex watches
coach outlet store
yankees jerseys
montblanc
pandora charms
fitflops sale clearance
pandora
coach outlet online
nike free run flyknit
nfl jerseys cheap
curry shoes
ray ban sunglasses outlet
christian louboutin outlet
adidas nmd runner
nike air max 95
marc jacobs
christian louboutin shoes
adidas ultra boost
coach factory outlet
ray ban sunglasses discount
cheap jordan shoes
adidas superstars
hermes outlet online
oakley sunglasses on sale
cardinals jerseys
michael kors outlet clearance
abercrombie outlet
marc jacobs outlet
coach factory outlet online
hermes outlet
cheap rolex watches
pandora charms
air max 90
nike free run
nike outlet store online
longchamp handbags
yeezy boost
coach factory outlet online
true religion jeans
ralph lauren sale
tory burch sale
coach outlet online
coach factory outlet
fitflops clearance
air max
cheap jordan shoes
michael kors outlet online
coach factory outlet online
coach factory outlet online
ray ban sunglasses discount
nike sneakers
michael kors outlet store
coach outlet online
yeezy boost 350
louboutin outlet
coach outlet online
gucci outlet online
coach factory outlet
air jordans
coach outlet store
louis vuitton outlet online
michael kors outlet online
louis vuitton outlet online
discount oakley sunglasses
ralph lauren outlet online
moncler pas cher
polo ralph lauren
mulberry bags
sac louis vuitton pas cher
coach outlet online
ray bans
michael kors bags
adidas
toms outlet
coach outlet store
michael kors
mont blanc pens
broncos jerseys
coach factory outlet
sac louis vuitton
polo ralph lauren outlet
birkin handbags
swarovski uk
discount oakley sunglasses
fake rolex watches
clarks shoes outlet
wireless beats headphones
michael kors outlet online
salomon boots 
birkenstock outlet
ralph lauren
jordan shoes
fit flops
michael kors outlet store
coach outlet store
louis vuitton outlet store
adidas nmd r1
gucci
red bottom shoes for women
coach factory outlet online
mulberry handbags
kate spade outlet online
adidas nmd r1
christian louboutin sale
swarovski crystals
ralph lauren outlet
rangers jerseys
polo ralph lauren outlet online
mulberry outlet uk
mlb jerseys
coach factory outlet online
true religion jeans outlet
pandora jewelry outlet
fitflops clearance
beats wireless headphones
burberry sale
bercrombie
tods outlet
fitflop shoes
cheap nike shoes
cheap nfl jerseys
kd 8 shoes
christian louboutin outlet
salomon outlet
michael kors outlet clearance
nike outlet online
burberry outlet
michael kors bags
michael kors outlet online
oakley sunglasses outlet
jimmy choo shoes
ed hardy store
fred perry polo shirts
cheap oakley sunglasses
ralph lauren outlet online
valentino outlet
pandora charms outlet
air max shoes
nike store
dolce and gabbana outlet online
yeezy boost
toms outlet
fitflops sale
michael kors outlet canada
pandora charms outlet
nike roshe one
gucci
cheap oakley sunglasses
49ers jerseys
moncler jackets
rolex replica watches for sale
mbt
chaussures louboutin
michael kors
true religion jeans outlet
ralph lauren outlet
adidas
yeezy boost 350
tory burch outlet online
nike air max
yeezy 350 boost
michael kors bags
ralph lauren
patriots jerseys
christian louboutin shoes
adidas nmd r1
michael kors uk
coach outlet online
nike blazer low pas cher
coach factory outlet
pandora bracelet
gucci handbags outlet
nike air max 95
red sox jerseys
gucci bags
michael kors outlet online
coach outlet online
polo ralph lauren outlet online
air jordan shoes
nike flyknit
christian louboutin
mulberry uk
polo ralph lauren outlet
moncler outlet online
levis outlet
toms
nike roshe shoes
longchamp soldes
longchamp outlet store
kate spade outlet online
hollister clothing
coach outlet canada
lakers jerseys
christian louboutin shoes
kate spade uk
longchamp bags
michael kors
ralph lauren sale clearance uk
pandora charms sale clearance
oakley sunglasses outlet
moncler jackets
chi flat iron
jordan shoes
hermes bags
polo ralph lauren
mulberry
ralph lauren
clarks shoes outlet
michael kors handbags
coach outlet online
nfl jerseys
pandora jewelry outlet
coach outlet
pandora charms sale clearance
michael kors
mlb jerseys
adidas sneakers
longchamp bags
adidas store
hollister kids
beats headphones
nike cortez classic
tigers jerseys
coach factory outlet online
ralph lauren sale clearance uk
warriors jerseys
pandora jewelry
salomon outlet
louis vuitton outlet online
cheap air jordans
coach factory outlet online
longchamp pliage
cheap oakley sunglasses
nike air force
michael kors outlet
coach outlet store online
louis vuitton purses
michael kors
nfl jerseys wholesale
adidas superstars
packers jerseys
longchamp handbags
fitflops sale
michael kors
louis vuitton outlet store
red bottom
pandora outlet
white sox jerseys
fitflops sale
mbt
air max
clarks
nmd adidas
cheap ray ban sunglasses
coach outlet online
adidas yeezy boost 350
burberry outlet
cavaliers jerseys
michael kors outlet online
fitflops sale clearance
air jordans
adidas sneakers
michael kors outlet online
fitflops sale clearance
true religion outlet online
fred perry shirts
adidas trainers
polo ralph lauren pas cher
cheap jordan shoes
pandora jewelry store
red bottom heels
eahawks jerseys
ed hardy outlet
coach outlet online
fitflops sale clearance
christian louboutin sale
louboutin shoes
nike uk
clarks shoes for women
parada bags
longchamp sale
yeezy shoes
discount oakley sunglasses
bulls jerseys
moncler coats
nike outlet store
vans outlet
vans store
timberland boots outle
ray ban glasses
christian louboutin pas cher
fred perry polo shirts
michael kors outlet clearance
cheap jordan shoes
rolex watches
jordan retro
yeezy boost
oakley sunglasses wholesale
nike tn pas cher
jordan femmes pas cher
rockets jerseys
cheap rolex replica watches
discount oakley sunglasses
adidas nmd runner
montblanc pens
coach outlet online
gucci bags
birkenstock uk
polo ralph lauren outlet
adidas yeezy boost
thunder jerseys
jordan uk
michael kors outlet online
louboutin outlet
birkenstocks
sac longchamp
true religion jeans outlet
pandora charms sale clearance
ghd straighteners sale
adidas yeezy boost
michael kors outlet canada
coach outlet online
cheap oakley sunglasses
coach outlet store online
fitflop
louis vuitton factory outlet
adidas yeezy boost
birkenstock
celine outlet online
coach outlet store online
air max 90
fitflop
birkenstock outlet
ed hardy clothing
nike sneakers
fit flops
polo ralph lauren outlet
louboutin shoes
michael kors outlet online
true religion jeans outlet
coach factory outlet
ray ban sunglasses cheap
ed hardy uk
adidas trainers
coach factory outlet
ralph lauren
chaussure louboutin pas cher
ghd hair
nike air huarache
ray bans
yeezy boost 350 v2
ray ban glasses
coach outlet online
coach factory outlet store
adidas superstar trainers
michael kors
michael kors outlet store
polo ralph lauren
adidas superstar shoes
mlb jerseys whgolesale
polo ralph lauren outlet online
pandora charms sale
tods shoes
oakley sunglasses outlet
birkenstocks
celine handbags
yeezy shoes
coach factory outlet online
red bottom
michael kors outlet store
kate spade outlet
kate spade bags
mbt
michael kors outlet online
fitflops sandals
mlb jerseys
coach outlet online
coach outlet store online
cheap air max
longchamp bags
dansko
adidas outlet online
adidas sneakers
michael kors uk
adidas yeezy boost
cubs jerseys
ralph lauren uk
coach outlet online
michael kors outlet clearance
fit flops
pandora charms outlet
louboutin outlet
kate spade purses
pandora charms sale

fewfefr
 

TRENDING THREADS

Latest posts