Frig

Discussion in 'First Time & New Camper Owners' started by Coniece, Feb 23, 2019.

  1. Coniece

    Coniece New Member

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    We have a 2006 Aliner that we bought and are revamping. The frig is a domestic model RM 4223. We put a 12v in today hoping that would get the frig running because we had read that the battery is necessary in order for the frig to use the elec. the frig works on propane only. Does anyone have any suggestions to fix it??
     
  2. Toedtoes

    Toedtoes Well-Known Member

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    Do your outlets inside work when attached to shore power?

    If not, you may have a problem with the converter rather than the fridge.
     
  3. GreyFox

    GreyFox Active Member

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    Your Dometic RM4223 is a 3-way manual light gas absorption fridge. The only time you might use the 12 vdc mode is when you're towing the trailer and for whatever reason prefer to not run the fridge in the gas mode. Your vehicle of course would have to be wired with a charge line back to the trailer so if you do run in the 12 vdc mode while traveling the trailer battery won't be depleted. Many of us however will just run a small manual light fridge like this in the gas mode as that requires no 12 vdc power at all. Since this fridge is a manual light model it doesn't require any electrical power at all to run in the gas mode. If you want to precool the fridge before a trip and have 120 vac shore power available your best choice is to plug the trailer into that 120 vac shore power source and switch the fridge to the 120 vac mode. If you don't have an owner's manual for your fridge you can download one at the following link.

    https://www.dometic.com/en-ca/ca/pr...ic-compact-refrigerator-_-31115#documentation
     
  4. tombiasi

    tombiasi Well-Known Member

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    Your battery will only last a couple of hours with the frig on DC
     
  5. GreyFox

    GreyFox Active Member

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    Ergo the reason there must be a charge line from the tow vehicle back to the trailer so when towing the trailer battery is not depleted.
     
  6. tombiasi

    tombiasi Well-Known Member

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    I know it just sounded to me that the op had plans to run the unit in DC all the time.
     
  7. Toedtoes

    Toedtoes Well-Known Member

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    I believe the OP mentioned the battery because newer fridges require 12v power for the control board regardless of the operating power source.

    As her fridge is a manual one, it does not require 12v to power when on propane or shore power.

    She is trying to operate it on shore power, from what I read, not 12v.

    OP - when you are hooked up to shore power is your battery charging?

    If so, plug into shore power and try running the fridge on 12v. If it works, then your problem is most likely the converter or wiring to converter. If it doesn't work on 12v, then the problem is most likely in the frdge.
     
    Last edited: Feb 23, 2019
    Coniece likes this.
  8. GreyFox

    GreyFox Active Member

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    Whether a gas absorption fridge requires 12 vdc power to operate has nothing to do with the age of the fridge but rather whether it's a manual light fridge or whether it's a DSI fridge. Most fridges installed in popups and similar styles of campers are still 3-way manual light, most installed in travel trailers, 5ths, etc are 2-way DSI. The OP's RM4223 is a manual light 3-way fridge that requires no electrical power at all to operate in the gas mode, an advantage especially for those who dry camp most or all of the time. What the OP actually said was - "We put a 12v in today hoping that would get the frig running because we had read that the battery is necessary in order for the frig to use the elec." - by which I suspect they meant they installed a battery on the trailer under the assumption it was required in order for the fridge to operate. It doesn't nor would one ever want to run it in the 12 vdc mode while camping as the battery would deplete in no time at all. Since the only time one would want to run a fridge like this in the 12 vdc mode is when towing the trailer's converter has nothing to do with whether the fridge works or not.
     

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