Dometic RUC 6408X 2-Way Fridge/Freezer, 188 Litre

12V/24V & 240V 2-way compressor caravan fridge/freezer

Reviews: (19)    | Q & A |   SKU: RUC6408X Learn More»

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Dometic RUC 6408X 2-Way Fridge/Freezer, 188 Litre


Utilise your kitchen space with the narrow but tall design of the Dometic RUC 6408X 2-way compressor fridge/freezer for your caravan or RV. The narrow footprint allows for easy installation, as you can simply fit this fridge through your caravan's doorway, however you don't need to compromise on storage space, as the RUC 6408X has a total storage capacity of 180 litres with both the fridge and freezer compartments containing door shelving. The functionality of this fridge is intuitive with the design of the user in mind. With an easy to use touch control panel which allows users to control the temperature and variety of pre-set modes. It also incorporates coloured error messages along with an alarm in case any errors occur.



  • Narrow yet tall cabinet design
  • T-rated for optimum performance
  • Easy to use control panel
  • Adjustable shelves and wire doors
  • Crisper is the full width of the fridge and features humidity control
  • Bottom shelf can be lowered at the back to securely store bottles and cans.
  • Stylish touch control panel
  • Variety of pre-set modes
  • Self diagnostic system with coloured error messages and audible alarm



  • Dimensions: 677mm (d) x 1447mm (h) x 550mm (w)
  • Operation: 12V/24V DC, 240V AC
  • Gross volume: 188L
  • Storage volume: 180L
  • Fridge volume: 134L
  • Freezer volume: 46L
  • Hinged: Reversible
  • Weight: 43kg
  • Warranty: 3 years




Brand Dometic

GTIN 6951218417231

Product Category Upright RV Compressor Fridges

Fridge Voltage 12 / 24 / 240 V

Total Capacity (L) 180

Fridge Width (mm) 550

Fridge Height (mm) 1447

Fridge Depth (mm) 677

Weight (kg) 43

Freezer Volume (L) 46

Cut Out Required 530 - 535 x 1437 - 1442 x min. 611 mm (W x H x D) (the fridge must be installed in a recess so that it stands secure when the vehicle is in motion).

Average Power Consumption 0.95 kWh/24 h (240V) | 2.8 Ah/h (12V)

NOTE: see full product specifications & further product info in the section on this page.


Warranty Period: 3 Years

Warranty Details: Please CLICK HERE for Warranty Information on this product


  • We ship Australia-wide with national road express freight companies such as Star Track, TNT and Toll.
  • Small Items are sent with Australia Post via regular post.
  • Delivery times are generally 3-5 days from day of dispatch for major cities (sometimes quicker). Please allow longer for regional and remote areas.
  • Once your item(s) have been dispatched, we will provide you freight tracking information so you can track your delivery to your door.
  • Items are fully insured during the freight process.
  • Unfortunately we cannot deliver to PO Boxes.
  • For further details on our Delivery Process you can visit our Delivery Page HERE.


Write a product review

Dometic compressor 188lt fridge

7 December 2023

Excellent quality product highly recommended and excellent service communication and fast postage from caravanrvcamping. Thanks again

Dometic RUC 2 way fridge

26 October 2023

Really happy with the fridge I recently purchased, I spoke to the guys before purchasing with some questions I had and there service was great, the fridge was at my door 6 buisness days after placing the order which was excellent! I would not hesitate to use these guys again

Dometic RUC 2 way fridge

24 October 2023

Really happy with the fridge I recently purchased, I spoke to the guys before purchasing with some questions I had and there service was great, the fridge was at my door 6 buisness days after placing the order which was excellent! I would not hesitate to use these guys again


1 September 2023

Upright two way fridge for a caravan to replace our old dometic which is smaller ,great fridge but a little noisy and fits through the door of van.

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Q & A

  • How do I deactivate the child-lock in my RUA/RUC model refrigerator?

    These models have a great lock for children to prevent any accidental adjustments. If you are unable to change the temperature or the power source, you have most likely activated the child-lock. You can either permanently deactivate or temporarily override the lock - please see below:

    Temporarily Override the Child-lock:

    • First push the control knob 3 times within 1.5 seconds
    • The lock will be reactive again after 10 seconds without touching the control knob

    Permanently Deactivate the Child-lock:

    • Start with doing a temporarily override, after that simply turn off the child lock in the settings menu
  • How often do I need to service my Dometic RV/Caravan appliances?

    Dometic recommend servicing their gas appliances on a yearly basis, even if the vehicle has not been used. Additionally, bear in mind that insects can built nests in the gas appliances which will cause the appliances to stop working. It can also cause potentially dangerous scenarios.

    For other appliances, such as refrigerators and air conditioners, to ensure the appliances to work efficiently and last longer it is recommended to clean the condenser. 

  • What do I need to think about in regards of the ventilation with my Dometic compressor fridge?

    Dometic Compressor fridges work best when there is air flowing across the compressor.

    For small to medium sized Dometic fridges (CRX50, CRX80 & CRX110), minimum of one vent is required. This should be mounted in the van wall, parallel to the compressor at the top of the fridge. Vent options are:

    For the CRX140 is a little different, the fridge compressor is mounted on the top of the fridge. It is best to only use one vent mounted at the top rear of the fridge. Install the fridge in a way that you can pull air from the front, up the side of the fridge over the compressor and out the vent.

    The compressors above 140 Litre, (RUC6408X & RUC8408X), these large sized fridges require two vents, one at the bottom and one at the top. In this case it would be best to choose the 2 x LS300 vents.

  • What do I need to know about installing my 12v compressor fridge in my van?

    Installation instructions will come with your 12V Compressor Fridge. The installation/manual document will also cover:

    • Recommended ventilation  
    • Side and rear gap sizes for installing in your RV cavity
    • Mounting
    • Wiring

    Depending on the model, there will also be information regarding; maintenance, cleaning, defrosting, energy saving tips, reversible doors, inserting new door panels and troubleshooting.

  • Does the fridge auto select between 12v/24v?

    Hi - Yes it does!

  • What is the cooling capacity for the RUC range?

    The RUC fridges can refrigerate goods between 0°C and +8°C. While the freezing temperature range is between -20°C to -10°C. 

  • What is the suitable voltage for this refrigerator?

    The RUC fridges are designed to be operated from a 12 V DC or 24 V DC on-board supply, however, you can also use a 100- 240 V AC mains.

  • Where can the Refrigerator be installed?

    The Dometic RUC Compressor fridges are suitable to instal into caravans, motorhomes or boats. The refrigerator is only suitable for installation in a fitted cavity. Once it is installed, only the front of the appliance may be accessible.

  • Can the fridge handle to be inclined?

    Yes, as the fridge can be installed on boats, the refrigerator can withstand a short-term inclination of 30°.

  • Is it suitable to instal the RUC fridge in an open area?

    It is important that you install the fridge in a recess, in this way the fridge stands secure when the vehicle is moving. Dometic also recommend that you install the refrigerator in a sealed location to prevent dust and heat from entering the living space of the caravan or motorhome.

  • Can I use extension power cables or power strips with the fridge?

    By avoiding additional switches, plugs or power strips, you avoid voltage drops and loss of performance. Instead keep the connection cable as short as possible and uninterrupted. 

  • I'm looking to purchase a Dometic RUC fridge, does it have protection against reversed polarity and short circuit?

    Yes, the Dometic RUC range is equipped with an electronic system to prevent the polarity being reversed. This will protect the fridge against reversed polarity when connecting to a battery and against short circuiting.

  • My fridge has a mild odour, is this normal?

    Yes, it is. We recommend airing the living space well, as when using the fridge for the first time, there might be a mild odour. This odour will disappear in a few hours.

  • If my vehicle has a battery management system, will that cause a problem when I connect my new fridge?

    Dometic recommend deactivating the battery management system, as it will switch off the power supply to the refrigerator as soon as the vehicle engine is switched off for longer than 30 minutes. The fridge requires a constant DC power supply to operate. If your vehicle has a battery management system, just be aware that it may switch of the DC power to the fridge.

  • When or how often should I defrost the refrigerator?

    We recommend to defrosting your fridge as soon as a layer of ice forms in the freezer compartment. The freezer will require periodic manual defrosting, if the frost layer is higher than 3 mm it is advised to defrost it.

  • Is there a security feature to prevent any accidental adjustments?

    Yes, the RUC range has a child lock feature to prevent accidental adjustments or children from using the controls.

  • If something is wrong with the fridge, is the fridge equipped with an indicator to show the error?

    Yes, the fridge has a display that will indicate any active errors, backlights or screen issues. If the display is showing an error screen, the middle section is highlighted in red and shows the relevant error code.

  • Can I store heavy objects such as bottles or cans anywhere on the refrigerator?

    We recommend to only store heavy objects such as bottles or cans in the refrigerator door, in the vegetable compartment or on the bottom shelf.

  • I can see that the fridge has a door airing function, what is it used for?

    The door airing function is designed to use if you do not intend to use the fridge for a longer period. The function will prevent mould to form in the refrigerator.

  • I can see that the RUC range has an automatic cyclic defrost system, why is manual defrosting still needed?

    This is a great question! The manual defrosting is required if you are using the fridge for an extended period in high humidity and/or high ambient temperature conditions. These conditions will cause frost to build up on the evaporator fins (behind the internal fan cover), if frost occurs there the cooling capacity will be reduced. It is recommended to do periodic manual defrosting if the payer if higher than 3mm.