The 3 way (gas/elec/12volt) fridge in caravans require a very high current 12 volt power supply to keep the fridge icy cold in transport. You may not know this but this circuit comes from your tow vehicle and not your caravan’s battery. It can be in the 12 pin plug or in an Anderson plug connection. The gauge of wiring for this circuit MUST SUPPORT ITS REQUIRED CURRENT DRAW all the way from starter battery to fridge. So, when we run the vehicle cable, we always take this into account. If you have an Automatic 3 way fridge (AES) both Thetford or Dometic, you will also require an extra sensing wire from the vehicle to tell the fridge to turn over to 12 volt and start pulling high current from the vehicle when the engine is running.

Upon shutting the engine down, the sensing wire should isolate and in turn the fridge will stop pulling power from the vehicle. 15 mins after this, the fridge will try and ignite onto GAS. This is the automatic feature and is there for your safety. When you start your vehicle again, it will turn back onto 12 volt automatically. As we understand caravan appliances and circuits we make sure the vehicle is setup correctly to suit the required application. 

Why Choose Us

  • positive review  Matt did a terrific job adding a Foxtel IQ3 box to the satellite TV system installed in our motorhome.

    Gary Oo Avatar Gary Oo
    August 4, 2021

    positive review  We have been using Matt’s services for a while now, when you’re on a good thing, stick to it. Great service from Matt, and now Riley. No job too small... read more

    Alana Odam Avatar Alana Odam
    November 4, 2021

    positive review  Matt and now Charles have worked on my last 4 cars and 1 vav. nerver have these guys let me down or given me poor advice. you boys rock

    Daniel Colson Avatar Daniel Colson
    May 24, 2019
  • positive review  Recently had an upgrade to our caravans off grid electrical system, Matt and Riley work was very professional leaving no stone unturned, I strongly recommend them for a quality, knowledgeable... read more

    Glenn Scott Avatar Glenn Scott
    September 13, 2021

    positive review  Excellent service. Couldn’t do enough for me. Very happy customer. Would definitely recommend their services.

    Brett Loveday Avatar Brett Loveday
    July 8, 2018

    positive review  We have been using Extreme Auto for a number of years both with our old van and our current new van. Matt and Riley are fantastic to deal with, work... read more

    Dave Chris. Jarrett Avatar Dave Chris. Jarrett
    November 2, 2021
  • positive review  This is the 3rd time we have used Extreme Auto and every time Matt has been extremely punctual, worked quickly and spent time to explain and recommend the best for... read more

    Kingsley Brundell Avatar Kingsley Brundell
    September 28, 2021

    positive review  Matthew was on time, informative, polite, efficient and completed great work. He installed a UHF Radio and Antenna then gave me instructions how to use. I also had a damaged... read more

    Judy McDonnell Avatar Judy McDonnell
    March 13, 2020

    positive review  First time I have used Matt, absolutely wrapped with the work he has done for me on installing solar panels, lithium batteries and would absolutely recommend him to anyone.

    Neville Hembury Avatar Neville Hembury
    December 1, 2020
  • positive review  I would highly recommended Matt to anyone his workmanship and knowledge is second to none

    Lance Edwards Avatar Lance Edwards
    October 4, 2018

    Excellent service and quality workmanship I am most impressed with Matt's professionalism, knowledge and integrity. Can thoroughly recommend.

    Rob Seaton Avatar Rob Seaton
    April 12, 2016

    positive review  Matt is a legend in what he does.He installed our Deisel heater a couple of weeks ago in our Nova Terra Sportz and very happy with his service. very professional... read more

    Darren Smith Avatar Darren Smith
    August 28, 2020
  • positive review  Been following Matt for a while he has the knowledge to give good advice and his workmanship is 2nd to none Looking forward to getting my setup in the Jayco Journey... read more

    James Dunn Avatar James Dunn
    May 12, 2022

    positive review  Matt and Riley just set up our van to 12 volt, set the tow rig up with dual batteries and installed spot lights. We are so happy with their work,... read more

    Ingrid Elzinga Avatar Ingrid Elzinga
    October 1, 2021

    positive review  To fellow South Australian. motor Home owners..... We were having trouble that because our Inspiration Supreme by Paradise,was in storage (outside), The Vehicle Battery would slowly lose charge. Once after a... read more

    Yvonne Bendall Avatar Yvonne Bendall
    March 30, 2019
  • positive review  Matthew and Riley are two very professional tradesmen who honoured their time and fulfilled our requirements exactly how Matthew said it would be done sorting the electrical system on our... read more

    Adrian Hill Avatar Adrian Hill
    August 5, 2021

    positive review  I had Charles come out last Thursday to wire up second battery with a dc dc charger. What a great job he did. Plus a great guy also. I have... read more

    David Griffin Avatar David Griffin
    June 24, 2019

    positive review  Sometimes you have to wait for the best....we have had a number of electrical problems over many years which cost us both time and money...while caravanning we spend the majority... read more

    Madelyn Bansemer Avatar Madelyn Bansemer
    July 29, 2021
  • positive review  We didn’t mind driving up from Melbourne and waiting for over 3 months for a booking to get some of Matt’s 12volt expertise in upgrading our lithium power... read more

    Preeti Singh Avatar Preeti Singh
    July 14, 2021

    positive review  There are good reasons that these guys are flat out and booked months in advance. Courteous, punctual, knowledgeable and informative, but most of all, their work is of the highest... read more

    Hilton Gumbys Avatar Hilton Gumbys
    August 17, 2022

    positive review  Matt does an amazing job and thinks about what you need for the type of travel you do. Very professional with attention to detail. Cannot recommend him enough! Had him... read more

    Peta Matthews Avatar Peta Matthews
    May 26, 2021
  • positive review  Great job on our Pajero! Workmanship is of the highest standard. Great service and a fantastic job. Thanks Matt. �

    Jackie Daniel Avatar Jackie Daniel
    November 25, 2016

    positive review  We have used Matt 3 or 4 times. Always found him to be most helpful. He is extremely thorough and his work is neat and precise. We highly recommend... read more

    Helene Scott Avatar Helene Scott
    May 30, 2020

    positive review  Such a professionally run company. Matt is so good at what he does and is a legend. Arrived on time and went above and beyond to get us all set... read more

    Shonel Shute Avatar Shonel Shute
    April 4, 2019
  • positive review  Recently Matt and Riely installed a Monster Of grid solar system into our new Avida Esperance motorhome. After many queations asked by Matt on the requirements that we were expectng in... read more

    Domenic Centofanti Avatar Domenic Centofanti
    April 11, 2022

    positive review  Had my old brake controller replaced with a new redarc pro also 7pin to 12 pin change over and a new red Anderson plug installed. Cannot fault the workmanship of... read more

    JIm Leanne Wagner Avatar JIm Leanne Wagner
    April 2, 2022

    Matt is so the man when a woman is in distress! The electric brakes in The Gin Gypsy were not happening, all before her maiden rural voyage and he came... read more

    Glenda Clarke Avatar Glenda Clarke
    May 17, 2018
  • positive review  Mathew and Riley, excellent prompt service and advice as expected, excellent quality work and always patient with my questions

    Shane Ash Avatar Shane Ash
    August 5, 2021

    positive review  Matt and Riley completed a great job, very neat, clean and exceptional service!!! thank you for your effort lads!

    Scott Schultz Avatar Scott Schultz
    March 26, 2020

    positive review  Can't rate you highly enough Matt was excellent went above and beyond Communcation has been excellent all the way Great service keep up the fantastic work

    Andrea Conway Avatar Andrea Conway
    December 2, 2021

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