Electrical Gremlins Help Needed

Submitted: Wednesday, Jul 11, 2012 at 21:25
ThreadID: 96815 Views:3324 Replies:6 FollowUps:6
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Electrical gremlins have been affecting us on our trip up the red centre and the symptoms are as follows:

1) Fridge (Dometic RM 7401) appears to run ok on gas but is useless on 230V to the point where the fridge contents warm up even when turned to coldest setting (works worse than 12v)
2) On 12V it usually manages to maintain temp but sometimes when we pull up there is a buzzing sound coming from the fridge that only stops when we switch to gas or start the vehicile's engine again
3) Electrical element on stove top has completely stopped working (was woking a few days ago)
4) Microwave is 900W but appears to only have output power of 500-600W when compared to cooking\heating times to our 1000W at home
5) Lights appear to only be running off 12v never 230V (if we turn off isolation switch the lights go out)
6) Can't say for sure but I believe heater, toaster & kettle running of 230V plugs are running with less power than normal (could it just be the sib zero mornings seem this way?)
6) Have been on parks main power for 30 hours and our van battery has depleted to low levels even though it was good when we left the last place and drove for 3 hours to get to Yulara. The only thing it should be running is the elec starter on gas for fridge and stove when we are on parks mains shouldn't it?)

To top if off there is also a problem with the second battery in the tow vehicle (09 Colorado). I believe the second battery is not charging because the Waeco fridge attached to it will only run for 5 moins or so before giving a low voltage error

I am trying to figure out what is going on. Is it a 12V or 230V issue with the van? and is there any link to the 2nd battery in the tow vehicle?

As I am in Yulara for the next 4 nights or so and unable to move on what can I do to locate the problems?

What expert do I use to fix these problems - Automotive Elec? normal electrician? both?

Is there any hope of finding someone in Yulara or do I have to wait until I get to Alice Springs early next week? Can someone please recommend someone in either of these locations so we don't get fleeced as we are newbie caravanners.
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