waeco fridge plug problem, auto elec. question

Submitted: Monday, Jan 05, 2009 at 07:59
ThreadID: 64819 Views:6438 Replies:12 FollowUps:14
This Thread has been Archived
Hi all . Firstly , happy new year to all.

Now to my problem. I have lost my 3rd waeco fridge plug to heat. Were it plugs into the cars 12 v outlet ( hella special plug ) it seams to get hot and melt the hella 12 volt connector near the fuse . Now it seams like a current issue , is it that the hella plugs are crap ? has anyone else had this issue ? On holidays in Port Stephens , does anyone know any place to buy one of these plugs ? or do I need to drive to Newcastle ? is there a Narva better version , as there is a auto shop here that sells Narva products


thanks in advance .

EC
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Reply By: Best Off Road - Monday, Jan 05, 2009 at 08:06

Monday, Jan 05, 2009 at 08:06
Eric,

It is an ongoing problem you will have forever. I got sick of replacing them (all melted) and cut the bastard of a thing off in the end and hard wired the leads to the battery.

BTW, remember that green 80 series 4.5 Turbo you had? The bloke you sold it to got a set of drawers from me a couple of months ago on your recommendation. Thanks.

Cheers,

Jim.

AnswerID: 342662

Follow Up By: Rock Crawler - Monday, Jan 05, 2009 at 08:14

Monday, Jan 05, 2009 at 08:14
any time bud
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Reply By: Rosco - Qld - Monday, Jan 05, 2009 at 08:32

Monday, Jan 05, 2009 at 08:32
Yep ... I'm with Eric on this one. It will be ongoing. Only difference with me was I went the Anderson plug route. Problem solved.

Cheers
AnswerID: 342663

Follow Up By: Member - Mike DID - Monday, Jan 05, 2009 at 10:17

Monday, Jan 05, 2009 at 10:17
The main reason Anderson plugs are so much more reliable is because the contact surfaces are silver-plated - the metal with the best conductivity and resistance to corrosion. For $9 each, they're amazing value.

I've changed to those for everything - the grey SB50 rated at 50 amps
50 amp Anderson

and the Black/Red Powepoles rated at 30 amps where you need something smaller.
30 amp Anderson Powerpole
.
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Follow Up By: Rosco - Qld - Monday, Jan 05, 2009 at 10:53

Monday, Jan 05, 2009 at 10:53
Oops .... sorry Jimbo. I meant your good self of course.
Happy new year cobber.

Cheers
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FollowupID: 610377

Follow Up By: Best Off Road - Tuesday, Jan 06, 2009 at 10:34

Tuesday, Jan 06, 2009 at 10:34
And all the best to you and Valda old boy.

Cheers,

Jim and Jenny.

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Reply By: Gramps (NSW) - Monday, Jan 05, 2009 at 08:38

Monday, Jan 05, 2009 at 08:38
How long does it take before the plug starts to melt? I've had mine connected for over a month at a time with no problems.

What size fridge?
AnswerID: 342664

Follow Up By: Rock Crawler - Monday, Jan 05, 2009 at 09:03

Monday, Jan 05, 2009 at 09:03
about 3 days
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Follow Up By: RV Powerstream P/L - Monday, Jan 05, 2009 at 09:40

Monday, Jan 05, 2009 at 09:40
Sounds to me its both a plug and cable problem with too small a cable and the plug being the least resistance failure Point .

Any plug change would mean changing both male and female and might then cause cable failure from excessive heat with the potential of a fire before the fuse blows.

Normal car outlets are underwired and prone to failure.

If you like you can ring me on 0427648726and I will help you
if I can.
No charge no dramas just assistance as Im not far away.

Ian

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Follow Up By: RV Powerstream P/L - Monday, Jan 05, 2009 at 09:51

Monday, Jan 05, 2009 at 09:51
This might help
Bay AutoElectrics 16 Ocean Road 0412613595???
Coolair Auto Elec 33 Soldiers point Rd Salamander Bay 49820271
Darts AutoElec 163 Salamander Rd Salamander Bay 49827733

Ian
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FollowupID: 610366

Follow Up By: RV Powerstream P/L - Monday, Jan 05, 2009 at 09:57

Monday, Jan 05, 2009 at 09:57
Add tothe above
Blueys AutoSpares 164 george St Salamander Bay 49846688

Nelson Bay AutoSpares 1/63 Donald St Nelson Bay 49849948
GoodLuck
Ian
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FollowupID: 610368

Follow Up By: Member - Mike DID - Monday, Jan 05, 2009 at 10:43

Monday, Jan 05, 2009 at 10:43
"Normal car outlets are underwired and prone to failure. "

Yes, the rear sockets in a Pajero are a classic example - they are rated at 10 amps, but the wiring is so thin that if you draw 10 amps, the voltage drops by 2 volts - 10.5 volts from a fully charged battery !
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Follow Up By: Rock Crawler - Monday, Jan 05, 2009 at 18:31

Monday, Jan 05, 2009 at 18:31
thanks mike , I was at the auto elec at the BP , but he was on holidays last week. Might try him again tomorrow , I am staying on donald st and didnt see the spare parts store lol , might keep my eyes off the bikkini girls in the morning and have another look.

thanks for the great contacts
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Reply By: Member - Ian H (NSW) - Monday, Jan 05, 2009 at 09:00

Monday, Jan 05, 2009 at 09:00
Eric, We have a Waeco 80 ltr and changed the plug to a low voltage type similar to a normal 240 volt style and size. It has one flat pin at the top that is horizontal and one flat pin vertical. Impossible to plug into 240 volt stuff. Never had a problem. Obviously you need a female socket on the car. Not the only answer but it works. Ian
AnswerID: 342667

Follow Up By: Member No 1- Monday, Jan 05, 2009 at 14:51

Monday, Jan 05, 2009 at 14:51
32 volt stuff
i use it on my trailblazer (copy)
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Follow Up By: Member No 1- Monday, Jan 05, 2009 at 15:01

Monday, Jan 05, 2009 at 15:01

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Follow Up By: Member No 1- Monday, Jan 05, 2009 at 15:03

Monday, Jan 05, 2009 at 15:03
and the plug
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Reply By: Gronk - Monday, Jan 05, 2009 at 09:35

Monday, Jan 05, 2009 at 09:35
Have you got a hella type socket in the rear of the 4x4 ?? If so, check that the little spring loaded positive clip will clamp onto the positive pin of the hella type plug ??

I used a Jaycar Hella type plug.....far better than the others...has an earth ring right round the circumference of the plug...

I have also done what others on here have reccomended.....cut off the lead as close to the fridge as possible and use bigger cable ( soldered together ) with a normal spade type fuse holder at the plug end....

You have a hot joint somewhere at the plug....but shouldn't be too hard to trace ...
AnswerID: 342675

Reply By: Member - Kevin R (QLD) - Monday, Jan 05, 2009 at 10:38

Monday, Jan 05, 2009 at 10:38
I've had hella plugs for 7 yrs in both Prados for my 50 lt Waeco.
I had the sparky use heavier cable and have had no problems in 7 yrs.

Cheers

Kev
AnswerID: 342683

Reply By: MEMBER - Darian (SA) - Monday, Jan 05, 2009 at 10:39

Monday, Jan 05, 2009 at 10:39
Agreed re the above - Anderson plugs are great - sized from quite mini up to big mothers. Re Hella plugs - best supplier I've seen is the Autopro chain - many others have nothing at all Hella.

AnswerID: 342684

Reply By: MrBitchi (QLD) - Monday, Jan 05, 2009 at 11:10

Monday, Jan 05, 2009 at 11:10
Don't think it's anything to do with the Hella plug. It's the pathetic wiring in the vehicle socket that causes the problem. Get your socket rewired with some heavy cable.
AnswerID: 342691

Reply By: Mark Taylor - Monday, Jan 05, 2009 at 13:45

Monday, Jan 05, 2009 at 13:45
I can tell you as an auto elec that your melted plug is caused by poor connection.

Everytime!

If you are buring out the male plug from the fridge, then it sounds like the female socket is not holding the plug firmly enough.. causes all sorts of burnt connections. Replace the female socket.

If you are going to run heavier wiring to the rear, then an anderson plug is a good idea. I personally don't use them, I choose the Hella Plug and socket myself.. have been using them since the 70s in all sorts of vehicles and have had no problems.

In my last Series Land Rover (back in 1974) I actually had 3 of them in the back.. 2 running of a separate battery and wired independantly to run an Engel fridge and also lights. The other was wired to the start battery.
I have 2 of them in my new Disco 3 and they run the Waeco just fine.

Good Luck

Cheers

Mark T
AnswerID: 342717

Follow Up By: Rock Crawler - Monday, Jan 05, 2009 at 18:38

Monday, Jan 05, 2009 at 18:38
I think your on the money , I had the flush mounted hella type and have been talking about using a right angle for ages , will give it a go
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FollowupID: 610443

Reply By: Grungle - Monday, Jan 05, 2009 at 14:56

Monday, Jan 05, 2009 at 14:56
I have an 80L Waeco which I have had for around 5 years now. It runs 24/7 either from a power supply under the house (hella outlet), back of the car (hella outlet) or camper trailer (cig outlet). Mine gets warm but never melted. I have also broken one due to a sideways yank on the cable but just bought a new plug and fitted.

Check your voltages at the hella connector when fridge is connected and running as normal to see what voltage it is. If it is low (11-12V) then more current will be consumed to compensate (not much more though). This could be the cause of the melted plug.

I would say that the problem is a voltage drop in your cabling to the fridge (hella) plug.

Regards
David
AnswerID: 342724

Reply By: Member - Mike DID - Monday, Jan 05, 2009 at 19:17

Monday, Jan 05, 2009 at 19:17
"Where it plugs into the cars 12 v outlet ( hella special plug ) it seams to get hot and melt the hella 12 volt connector near the fuse ."

If the plug is warm or hot, then the problem is in the plug, not the wiring.

All plugs depend on pressure between two bits of metal to keep contact resistance low enough. Both Cigarette Lighter and Hella plugs depend on the centre contact maintaining pressure through the plug being firmly in the socket. Unless there is some sort of lock to hold the plug in, it will come loose and get hot.

An actual Cigarette Lighter has a metal collar which holds the plug and maintain centre-spring pressure. The ONLY Cigarette-Lighter plugs worth using are those that have this collar near the front. The convertible plugs that can work as a Hella plug when a red sleeve is removed have this collar.

If you are adding a Cigarette-Lighter-style socket, make sure it has the same retaining spring that original sockets have. Otherwise you will nothing to grip the collar on the plug. Dick Smith sell an illuminated socket that has this collar.
AnswerID: 342767

Reply By: Hairy (NT) - Tuesday, Jan 06, 2009 at 10:25

Tuesday, Jan 06, 2009 at 10:25
Gday,
Ive always used these....
Image Could Not Be Found

But I had trouble with the wires snapping off or pulling out of the back of the socket.
The auto elec recomended these which Ive been using for a year or so and have had no trouble with them. They are also heaps easier to line up than the little pins too.
Image Could Not Be Found
Image Could Not Be Found
The socket picture is pretty small heres the link if your interested
Hella socket

Cheers
Hairy
AnswerID: 342817

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