Troubleshooting Problems with your 3-way Caravan Fridge

Running into problems with your 3-way caravan fridge? Don't panic! Our experts are on hand with their top troubleshooting tips.

It might not quite be the end of the world, but problems with your 3-way fridge can be incredibly frustrating on a road-trip. Especially if you're in the middle of the bush.

Rather than watch in misery as your food goes bad, check our quick troubleshooting tips. We can't promise we have all the answers, but at least you'll be able to narrow down the problem and find a solution faster.

3 Way Fridges for Recreational Vehicles

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Temperature troubleshooting problems with your 3-way caravan fridge:

Struggling with a temperature problem in your 3-way fridge? Let's say it's getting cold in the freezer and not in the fridge. This is because not enough liquid ammonia is being produced for the refrigeration effect. The freezer gets the refrigerant first, and what's left over goes to the fridge.

There are a few things that could be causing this. Start by checking that the fridge is level (use a spirit level). Next, check to see if there's sufficient ventilation. If neither of these solve the problem, you could have an issue with a failing cooling unit.

For temperature problems, the first thing you should always check is the positioning of your caravan. Even if the vehicle is at a slight angle, that could be the problem with the cooling unit.

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Gas troubleshooting problems with your 3-way caravan fridge:

Camper fridges are not like your fridge back home. Your 3-way caravan fridge is running on propane gas or electricity, which means it has a pilot light to trigger the fridge burners. So, what happens if the pilot light goes out?

There are a few reasons behind this. First, it could be down to the thermocouple, which regulates how much gas is in the fridge's burner at any time. If this component fails, it's time to replace it.

If replacing the thermocouple doesn't fix the issue, perhaps your pilot light's gas line has too much air in it. This will prevent the pilot light from turning on and staying on. Fixing this means getting into the fridge's gas valves and resetting them. The good news is, if you have a newer 3-way caravan fridge, you can do this all by pushing the power button. If it's an older model, reset the fridge manually.

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Power troubleshooting problems with your 3-way caravan fridge:

Are you struggling to get sufficient fridge power? Do these quick checks:

  • Is the door sealed properly?

  • Is the fridge positioned too close to heat sources?

  • Is the fridge well ventilated?

  • Is there too much food/drink in the unit?

3-way Caravan Fridge
Dometic recommend cleaning, checking the door locking mechanism and defrosting your fridge regularly for maintenance and to save energy!

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Noise troubleshooting problems with your 3-way caravan fridge:

Struggling with excessive noise coming from your caravan fridge? This can be an annoying problem when you're living in a small caravan space! Check that the fridge is positioned on a flat surface. Then, look to see that it's not touching any other objects that might cause vibrations and knocking. Finally, check the circuit tubes at the back of the unit - are they touching or vibrating against the appliance?

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General troubleshooting problems with your 3-way caravan fridge:

Is your cooling unit leaking? There are two ways to check. First, you might notice a heavy smell of ammonia. Second, when you access the cooling unit in your fridge, you may notice that it's coated in yellow residue. This is because the steel tubing has deteriorated due to prolonged exposure to the cooling solution. So, what can you do about an unwanted leak? Call the professionals.

To prevent further troubleshooting problems with your caravan fridge click here!

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Service Agent Support:

Both Dometic and Thetford have national service agent support locations around Australia. To find your closest service department, call:

Dometic: 1800 21 21 21

Thetford: +61 3 9358 0700

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3 Way Caravan Fridge: Dometic RUA Series Review

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Thinking of upgrading your 3 way Caravan Fridge to a 12V Compressor Caravan Fridge?

The current trend for many Caravan owners is removing their old 3 Way Absorption Fridge and upgrading it with a new 12v Compressor driven '2 Way fridge'. You can read more about that in our article HERE comparing 2 Way or 3 Way Fridge for Caravans and you can watch the video below:

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2 Way Fridges vs. 3 Way Fridges for Recreational Vehicles

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Shop Best Selling 3 Way Absorption Caravan Fridges HERE

Shop Best Selling 2 Way Compressor Caravan Fridges HERE

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DISCLAIMER* Please note, this advice is general in nature and we strongly recommend consulting the product manual and where relevant, a professional installer.


28 thoughts on Troubleshooting Problems with your 3-way Caravan Fridge

Deepti says:
20 August 2024
My thetford 3 way fridge not cooling and working on any source. Control panel lights blinking and not letting me select any source now. I think it’s coming error code 10. My Ac also stopping working same time as fridge and for ac we had to replace the pcb. Is it because of not enough voltz? What could be the reason? Can I try replaceing powerborad?

My Generator Response
Hi Deepti, it sounds like you might have had a power surge through your caravan and it has caused a few issues with your electrical appliances. I would advise getting the fridge inspected and tested by a certified service agent. You can find a service agent on Thetford's website.

Ann Sallaway says:
15 June 2024
Just wondering why people are against 3 way fridges because of gas. I love my 3 way for the convenience of gas. If the batteries run down or your not near 240v. Lasts a about 10 days on one bottle. So sad as I am having trouble with all 3 powers. Just nothing will run the fridge. Having trouble getting someone to check it out.

My Generator Response
Hi Ann, absorption fridges are a great option for those that like to go off grid and don't have a good battery system. They do however have to be level to operate and don't work in tropical climates as well as a compressor fridge. Due to your fridge being gas you do require a technician that is gas certified. You can reach out to us on 1300 400 122 and we can assist in getting a service agent near you.

Theresa Nye says:
13 May 2024
My caravan fridge heating element has been changed fuses plugs etc checked it’s not working on gas or battery either

My Generator Response
Hi Therese, it could possibly be the main power board if you aren't getting it operate on either gas or 240.

Raymond says:
9 May 2024
Hi I have a rm2310 Electrolux 3 way fridge. Do these fridges operate colder when they are empty and on no.1 dial. I.e -6 Regards Raymond

My Generator Response
Hi Raymond, Fridges generally work better when there is cold food inside the fridge. Be careful not to pack the fridge to tightly though, air circulation is also key.

Hilary says:
23 April 2024
We have a Dometic RML 8551 fridge that was working fine last year. Tried to turn it on for a test run today and its totally dead. Nothing! Any ideas? The power is fine with everythung else.

My Generator Response
Hi Hilary, firstly check the wiring going to the fridge. When people store their caravans little pests can get in and chew wiring causing issues. If the wiring is still fine then it will be time to take it to a service agent in your area for inspection. Their could be an issue with the main power PCB which would require a professional to inspect

Mary berry says:
8 April 2024
Domestic fridge was working perfect light is on inside but not cool their food . Is there any way that I can get it back working

My Generator Response
Hi Mary, there are a few reasons your fridge is not cooling. If a 3 Way (Gas) fridge is not level then the unit can sometimes cease operation. The thermostat could be faulty (stops working with age). Sometimes it could just be the thermocoupler or regulator at the gas bottle that is causing issues. You would be best booking it in with a local service agent to run a few tests to see if they can fault find for you

Michael Stephens says:
10 February 2024
Hi. Our 3 way fridge has an error code 19, what does it mean exactly? The Batteries show they are fully charged but I’m thinking the fridge error maybe caused by a load problem off the batteries? Cheers.

My Generator Response
Hi Michael, without knowing the brand and model of the fridge it will be a little tricky to assist. If it is a Dometic or Thetford fridge, they have a list of service agents on their website you can contact for service advice. Feel free to reach out to us on our LIVE chat or contact us on 1300 400 122 if you need any assistance replacing the fridge

Alexandra Spalding says:
4 January 2024
I'm running only in AC. Bought it because it's silent and I run a music studio. It emits soo much heat, and is in a plywood cabinet with 3"of space at the back and an inch on all 3 sides. Think that's enough? I'm worried that it's so hot. Thanks!

My Generator Response
Hi Alexandra, these fridges are classed as absorption fridges. So they work at removing hot air from the fridge rather than a compressor fridge that pushes in cold refrigerated air. As these are designed to be fitted into caravan's, it needs ventilation to the outside environment so the hot air can escape. As this isn't possible in your application I would look at perhaps installing some small fans (ie computer fans) to help direct the air away from the fridge more.

Margaret Taylor says:
5 October 2023
I sprayed mosquito spray & it has ruined the door, any help would be appreciated

My Generator Response
Hi Margaret, if it the spray as eaten through the paint work then I would recommend visiting your local paint specialist to see if it can be sanded back and re-sprayed. Alternatively you can replace the entire door. Feel free to give us a call on 1300 400 122 and we can assist further

Robert Grimwade says:
27 September 2023
The fridge switched it self off, will not work on 240 volt, 12 volt or gas. If we leave it for several hours it comes back on, and wll run for several hour then switch it self off again. This has continued for the last 3 weeks, now it has died all together.We have had the fridge power source checked by an electrician and found that the fridge is receiving continuous power. Can you solve our problem? Thank you Bob

My Generator Response
Hi Robert, there could be a number of factors at play here. If there is low voltage getting to the fridge it can cause a few issues. If this isn't an issue then there could be a faulty board and it is not detecting the correct power source selection. You are best to contact your local Dometic service agent and book an inspection

Alan Osborne says:
13 September 2023
3way fridge. 12v working but battery and cooling lights are flashing what could be the problem

My Generator Response
Hi Alan, it sounds like it could be a potential voltage issue. The fridge isn't receiving enough volts to power the fridge. Test your battery and your connections into the fridge. If everything looks fine then it might be time to get the fridge inspected. See the below link to find your closest service agent

Natalie Lilburne says:
26 August 2023
Can we fix the locking mechanism on our fridge it’s a 3 way domestic rmb 8501 We think it’s a spring but not sure can we fix this ourselves or does it need to be a caravan place

My Generator Response
Hi Natalie, you best to find your closest Dometic Service Agent, they will be able to source the part and advise if it can be easily repaired. You can find Dometic's list of service agents on their website

Shane Green says:
22 August 2023
Can you tell me if the 3way dometic fridge comes with fuses to run? If so can you tell me where they are located? Our fridge was running on power at the time when it stopped going, Whoever it won’t run on either gas nor batteries Would appreciate your reply Kind regards, Shane Green [email protected]

My Generator Response
Hi Shane, thanks for reaching out. There are a number of factors which can contribute to this fault. Your best course of action is to contact your closest Dometic Service Agent that deals with gas appliances. These agents can be found on Dometics website.

Wanda says:
14 August 2023
My fridge stop working when i change the gas.

My Generator Response
Hi Wanda, there could be a number of reasons behind the gas function not working, lack of gas supply or even a circuit board issue. You are best to contact your manufacturers preferred service agent and book in an inspection.

Geoff morgan says:
28 July 2023
Fridge is beeping although still cold and freezer part ok

My Generator Response
Hi Geoff, there are a few reasons why the fridge can beep. Most times the fridge isn't getting enough voltage. You can check this first and if that doesn't rectify the issue then you are best to get it look at by your local service agent.

David Elliott says:
26 July 2023
After I have disconnected the wires from the door latch on the dometic 3 way fridge, the blue light still is flashing and beeping, why, and how do I turn it off ?

My Generator Response
Hi David, you are best to contact your local Dometic Service Agent https://www.dometic.com/en-au/support/service-locator they should be able to assist with some more in depth troubleshooting

Sharon says:
21 July 2023
Fridge not working. Orange light constantly flashing. Have tried removing fuses etc but no luck. Fridge very new - only used a small number of times.

My Generator Response
Hi Sharon, if the fridge is new and still under warranty you can contact your local Dometic Service Agent to assess and repair the fridge under warranty. You can find your closest one here https://www.dometic.com/en-au/support/service-locator

Katrina says:
3 July 2023
I can’t start it on gas has error 50 on it

My Generator Response
Hi Katrina, sorry to hear you are having difficulties with the gas. We would recommend you give Dometic Service team a call on 1800 21 21 21 and they will talk you through the steps on how to reset your fridge.

john quayle says:
13 June 2023
New 3 way fridge of a friend on gas will light feel heat coming out of flue then it just stops working.

My Generator Response
Hi John, with any gas appliances it is always best to get an authorized gas fitter to inspect. With it being new you are best to contact the brands authorized service agent. You can find your closest one on the brands website

vincent sweet says:
16 July 2022
We have a Thetford N3175 3 way fridge which is about 3 years old. Just about to go on a long trip and ran on gas and found unusual smell in caravan and from the vent. Fridge still works ok on 240v and 12v. Can anyone advise what this fault could be. Looking at back of fridge no abnormal appearance.

My Generator Response
Hi Vincent, We strongly recommend taking your fridge to a local Thetford Service Agent to be inspected. Kind regards, Jessica.

Thomas Coulter says:
26 May 2022
Hi there I have a Dometic RMS10.5xs fridge in my 2022 caravan it’s working fine on gas but not working on 240 could you advise on this please

My Generator Response
Hi Thomas, We recommend taking your fridge to a local Dometic Service Agent to be inspected. You can find your local agent here: https://www.dometic.com/en-au/support/maintenance-upgrade-or-service/find-a-dealer Kind regards, Jessica.

Colin Vine says:
13 May 2022
It appears that my freezer is not freezing the items in the freezer, it’s cool but not even making ice blocks. It is not overloaded and I have moved items from the back wall of freezer. It is a Thetford Model N614E.3F

My Generator Response
Hi Colin, It sounds like there is an issue with your fridge/freezer. If you contact the retailer where you purchased the fridge they will be able to direct you to a local repair agent.

Rebecca Feely says:
25 September 2021
We have a Thetford N175. The temperature display in scrolling and we can't switch between power sources. We have tried changing the PCB board on the front but this hasn't worked.

My Generator Response
Hi Rebecca, Thanks for your comment. We would suggest you take your fridge to your closest Thetford service agent for inspection. They should be able to determine and fix this issue for you. Kind regards, Jessica.

Lesley says:
16 July 2021
We have a 3 way fridge. It’s ok on gas but gets up to 11 degrees in the afternoons….. we turn it to 5 then it freezes by morning. It’s not working in 12v or 240. Any ideas

My Generator Response
Hi Lesley, It sounds like there is an issue with your thermostat. We recommend taking your fridge to your closest service agent to be inspected. They will also be able to quote repair compared to replacement costs. Thanks for contacting us.

James Doecke says:
11 October 2020
What is wrong with the fridge when it works on power but not on gas? The gas is burning ok, as you can see the needle is half way between the white and green on the dial, but not cold. On flat surface, what problems and how to fix please? It’s a domestic 90lt.

My Generator Response
Hi James, We would advise that you contact one of Dometic's service agents. You can follow this link, choose service centre, enter your address and then find the closest service agent that specialises in gas refrigeration. https://www.dometic.com/en-au/au/find-a-dealer Thanks.

Manik says:
13 September 2020
Good points regarding gas leak issues in refrigerator. Normally in both refrigerator and ac gas leak can cause cooling problems. We run a samsung fridge service and this post was useful for us. Thank you.

BaileyStrempel says:
14 August 2020
It is truly a great and useful piece of info about the problems with a 3-way caravan fridge. I’m happy that you shared this helpful information with us as I love to camp and travel.

Bruce Divall says:
29 January 2019
Dometic RM2350 3 way fridge; Fridge and electric stove top both stopped working on 240V. Power supply to both units are functioning correctly, and have also connected both units to a known functioning external power supply but still neither will operate. Could this simply be coincidence that both have fridge/stove top problems at the same time or is there somthing else that could be checked. Regards, Bruce

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