gas fridge running while travelling..?

Submitted: Monday, Apr 25, 2011 at 17:18
ThreadID: 85857 Views:5547 Replies:10 FollowUps:8
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Hi there
my 3 way fridge works perfectly except on 12V when it blows the fuse while on the road.
Can't find the reason for blowing fuse.

Therefore I was wondering what could happen if I run the fridge on gas while the JAYCO camper trailer is down (roof down)?

There is an internal vent on top of the fridge which will be covered with a 2cm gap once the bed is pushed in. It only gets slightly warm and there is also an external vent.

JS.
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Reply By: Bonz (Vic) - Monday, Apr 25, 2011 at 17:25

Monday, Apr 25, 2011 at 17:25
The handbook says not to run it, the movement of air past the external vent would cause a difference in air pressure actually causing a slight extract of air which may cause some issues. Search the site I recjkon this questions been asked afore.
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AnswerID: 452277

Reply By: Notso - Monday, Apr 25, 2011 at 17:37

Monday, Apr 25, 2011 at 17:37
What could happen!

Burn your little house down, that's what.
AnswerID: 452278

Reply By: Tenpounder (SA) - Monday, Apr 25, 2011 at 17:47

Monday, Apr 25, 2011 at 17:47
I have found that the 12v circuit must be able to supply aty least 15amps. In my vehicle, I have a 15amp slow auto reset CB plus a 20 amp fuse to supply the fridge.
This also means the wiring to the fridge (including where you tap into the vehicle (NOT THE CIGARETTE LIGHTER SOCKET IN THE REAR OF THE VEHICLE)), needs to be heavy enough to carry the curent and deliver at better than 12v.
AnswerID: 452279

Follow Up By: member-PradoMad - Monday, Apr 25, 2011 at 17:57

Monday, Apr 25, 2011 at 17:57
the battery in the c/t is gets charged via Anderson plug coming from my 2nd battery.
JS.
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FollowupID: 724954

Reply By: Tenpounder (SA) - Monday, Apr 25, 2011 at 18:24

Monday, Apr 25, 2011 at 18:24
Yes, but what is the rating of the wiring from the Anderson to the battery, and from the battery to the fridge? You may have a good connection via the Anderson, and then a poor connection to the fridge.
AnswerID: 452287

Follow Up By: member-PradoMad - Monday, Apr 25, 2011 at 18:28

Monday, Apr 25, 2011 at 18:28
one would think that the factory wiring would be sufficient. I might take it to the auto electrician.
JS.
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Follow Up By: Member - Bill B1 (NSW) - Monday, Apr 25, 2011 at 19:11

Monday, Apr 25, 2011 at 19:11
Never, ever run your van fridge on gas as you travel. You cannot gurantee that gas will not build up in the van and cause a fire or explosion.
Find out why there is a fuse blowing. Could be a loose connection shorting out in the plug or something else simple.
Bera in mind that the 6 pin flat Brilite plug is rated at 10 amps and your fridge can draw up to 15 amps. Mine melted the post in the plug.
Better to rewire it to an Anderson plug as the caravan battery is also charged by the same connection.

Bill
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Follow Up By: oldtrack123 - Monday, Apr 25, 2011 at 20:17

Monday, Apr 25, 2011 at 20:17
Hi Prado
Never believe that the factory wiring will be correct.
IN FACT VERY FEW SETUPS ARE CORRECTLY WIRED FOR OPTIMUM PERFORMANCE OF THE FRIDGE OPERATION & THE VAN BATTERY CHARGING,
Wirings is usually far from adequate!!
Peter
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FollowupID: 724971

Follow Up By: oldtrack123 - Monday, Apr 25, 2011 at 20:25

Monday, Apr 25, 2011 at 20:25
Hi Prado
RE:'one would think that the factory wiring would be sufficient. I might take it to the auto electrician.
JS""

Perhaps not the best option many are the culprits for inadequate wiring .
Tell him you want a guaranteed 12v @ the fridge with fridge"ON""& engine running & no more than 0.25 voltage drop [difference in voltage] from starter battery to van battery while charging
THAT WILL PUT HIM TO THE TEST.!!

Peter
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FollowupID: 724972

Reply By: Peter Eltham - Monday, Apr 25, 2011 at 20:16

Monday, Apr 25, 2011 at 20:16
It may be a risk pulling into a petrol station with a naked flame going in the fridge.

Peter
AnswerID: 452295

Follow Up By: Member - Julie P (VIC) - Monday, Apr 25, 2011 at 21:46

Monday, Apr 25, 2011 at 21:46
Think this is what happened in north WA few years ago -van running fridge on gas while travelling, because it kept it colder. Pulled in for fuel at a small town, sparks, flames - closed the whole town down for a couple of hours. Frightened quite a few people as well.
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Reply By: member-PradoMad - Monday, Apr 25, 2011 at 22:34

Monday, Apr 25, 2011 at 22:34
Thank you all for advise / info.
will talk to the electrician and get the whole thing re-wired.
JS.
AnswerID: 452306

Reply By: Ray - Tuesday, Apr 26, 2011 at 07:34

Tuesday, Apr 26, 2011 at 07:34
One problem I see with caravan manufacturers is that they are controlled by legislation as for as 240v circuits are concerned but not the 12v circuits therefore they do the job the most economical and cheapest way bearing in mind that there are no standards for auto cable and wiring.
AnswerID: 452320

Reply By: Member - Bruce C (NSW) - Tuesday, Apr 26, 2011 at 12:59

Tuesday, Apr 26, 2011 at 12:59
Hi PradoMad,

As far as I know it is illegal to have your gas turned on while traveling. Talking to a friend who said his brother in law, Yeah I know here we go again, who is a copper and he said he always checks the gas bottles to see if they are turned on when he stops people towing a van, motorhome or camper. If the gas is on they get a ticket.

Although the gas has a flame out protection system it is just to dangerous and there a many circumstances where it could be disastrous. Both for you or your rescuers in the event of an accident.

Go the 12 volt route as you suggested. It would be cheaper in the long run.

Cheers, Bruce
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AnswerID: 452342

Follow Up By: snoopyone - Tuesday, Apr 26, 2011 at 13:05

Tuesday, Apr 26, 2011 at 13:05
It is NOT illegal


Just extremely STUPID.

Have researched this and cannot find anywhere that it is so.

Could come under careless use of a vehicle but nowhere I could find is it specifically stated to be illegal.

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FollowupID: 725008

Reply By: Motherhen - Tuesday, Apr 26, 2011 at 15:21

Tuesday, Apr 26, 2011 at 15:21
Gas safety rules from LPG Australia

Extract from above: "Cylinder valves must be closed when a caravan is in transit. Never use any gas appliance, including a refrigerator, in a moving vehicle. Turn off every LPG appliance in caravans and boats before petrol refuelling."

Most gas companies have a similar warning on their websites.

Gas pipes can fracture in transit, and with a flame alight, there is the potential for a big bang. Turning off the bottles before leaving each morning is standard routine for us, and when we had a gas only fridge, we never even lit it when stopped.

Motherhen

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AnswerID: 452359

Reply By: member-PradoMad - Tuesday, Apr 26, 2011 at 16:00

Tuesday, Apr 26, 2011 at 16:00
would it be safe to change the fuse from the original 7.5 to 10 amps?
JS.
AnswerID: 452364

Follow Up By: Member - Toyocrusa (NSW) - Tuesday, Apr 26, 2011 at 21:19

Tuesday, Apr 26, 2011 at 21:19
I have a Dometic 156 ltr and I run a 20amp fuse in mine. I'm sure yours would draw more than 7.5amp. Bob

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FollowupID: 725081

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