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TOPIC: 12v Accessory socket problem

12v Accessory socket problem 3 weeks 4 days ago #439797

  • Anseo
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Many of you will know that me and electricity are not well acquainted friends, I will try my best to explain my little dilemma :blink:

I took the12v car vacuum cleaner and plugged it into one of the two 12v accessory sockets within the caravan. The caravan was on EHU at the time, caravan is a Bailey Pegasus GT65 Ancona.

Upon plugging in the vac the vac motor turned for half a second or less, then nothing, I thought that a fuse may have blown, tried the vac in the other 12v accessory outlet, this time I did not hear the motor in the vac start, but had the 'impression' that there was another 'trip'.

I take vac to the car and plug it in and it works fine, I notice that 12v accessory socket in car is marked 1.5 amps, 12 v accessory socket in the caravan is marked 6 amps.

I cannot find the fuse(s) related to 12 v accessory socket in the caravan distribution board, I plugged the TV into one of the 12v accessory outlets using the 12v connector, no power supply to TV :oops:

Any help on this please, thank you.

Anseo
Sir Haggis
Last Edit: 3 weeks 4 days ago by Anseo.
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12v Accessory socket problem 3 weeks 4 days ago #439803

  • Woodentop
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The relevant fuse will be one of the stack in the front of the power box under a seat. It is clearly marked. The likelihood is that it will be one fuse for both outlets. My Peg 462 (2010) has a 10A (red) fuse.

The most likely reason that the fuse blew is starting current on the vac, and/or the vac draws more current that you thought. It might be rated, say, 3A but on start for a very short time it could pull several times that and hence the fuse blows.
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12v Accessory socket problem 3 weeks 4 days ago #439807

  • Craigyoung
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Hi ,
It'll be the fuse more than likely , we bought a travel kettle a few years ago so we could use it on 12v whilst in the euro tunnel on way to France but upon trying it out in the caravan whist hooked on the drive we blew the fuse also , i had to ring the Ropers where we got it from so they could tell me which fuse it was . Even though something can be used in a 12v socket , check the wattage . It could be possibly marked auxillary . Best off buying a small plug in vacuum . Hope you get sorted .

Craig
Ford Kuga 2.oTdi & a Sprite Major 6TD

Sir Crying - will get to
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Last Edit: 3 weeks 4 days ago by Craigyoung.
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12v Accessory socket problem 3 weeks 4 days ago #439809

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The fact that the caravan was on EHU means that the voltage will have been around 13.8v, or maybe higher on some systems. This will mean the initial surge current will be quite a lot higher than when on a static 12v supply. (The vac will work a lot better at the higher voltage too!). Even so, a correctly rated fuse (probably 10A) should not blow. Most likely reason is that someone has at some stage replaced the fuse with lower rated one....we all do it if it is the only fuse we have to hand ....and then forget to replace it! (Also, a fuse which has been operating close to its limit over a long period can 'age' so that it fails at a lower than rated current).

I don't think your car outlet is rated at 1.5A .... that would be far too low to power a cigar lighter. 15A is much more likely.
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12v Accessory socket problem 3 weeks 4 days ago #439812

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Thats why i carry a small tub with a few of each fuse just incase ! Kept handy beside the +firstaid box and torch !! In the swift that we have now if a fuse blows a little red indicator illuminates so you know which one to change as I found out not long ago when the radio was not working which was also linked to the 12 volt sockets .

Craig
Ford Kuga 2.oTdi & a Sprite Major 6TD

Sir Crying - will get to
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12v Accessory socket problem 3 weeks 3 days ago #439880

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Thanks for the helpful replies folks.

VicMallows, I checked the 12v outlet in the car, you are correct, the outlet is marked as "MAX 15A", my bad :blush:

Have not had time to check out the fuses\location as yet, will get round to it.

If the fuse is actually 10 amp,would there be any risks in uprating it to a 15amp fuse (assuming that the vac continues to blow a 10amp fuse), I just bought this vac for car and caravan use, not sure if I can get one with lower power consumption that would actually suck up anything :unsure:

Thanks,
Anseo
Sir Haggis
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12v Accessory socket problem 3 weeks 3 days ago #439884

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Anseo wrote:
If the fuse is actually 10 amp,would there be any risks in uprating it to a 15amp fuse (assuming that the vac continues to blow a 10amp fuse)

In practical terms, NO. However I doubt very much if your vac would blow either a 10A or 15A fuse. Fuses (unlike MCB's) typically tolerate a short-term overload up to double their rated current.
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12v Accessory socket problem 2 weeks 6 days ago #440056

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The 10amp fuse had blown, now replaced.

Not on EHU at the moment so did not check the vacuum cleaner in the 12v outlet whilst on EHU.

12v outlets working OK now, so am happy with that at this time.

Thanks for all your help folks.

Anseo is :)
Sir Haggis
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12v Accessory socket problem 2 weeks 6 days ago #440064

  • Craigyoung
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Hi
the chances are if you put it back into the 12 volt socket it may blow the fuse again as the wattage may be too high for the caravan ? We just bought a cheap plug in one I think from Amazon plugs in doesn't blow nothing .

Craig
Ford Kuga 2.oTdi & a Sprite Major 6TD

Sir Crying - will get to
the round table some day ! ( sorry but can't get the Pink writing on my phone)!?
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12v Accessory socket problem 2 weeks 5 days ago #440116

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Hi Craig,

The vac did not blow the 10amp fuse when plugged into the 12v accessory outlet(s).

I will try the vac again when on EHU and see what happens.

Checked my battery voltage yesterday (off EHU) and it was showing 13v, on EHU the control panel in the caravan shows 13.8v, don't know if that is enough to make a difference and cause the 10amp fuse to blow.

I will connect the caravan to EHU later today ( if it stops raining :P).

I am reluctant to buy a 230v vac as
a) I am Scottish (read- tight as 2 coats of paint).
b) If off grid then the 12v vac is the only option, short of carrying a generator :lol: .
Sir Haggis
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