Fridge Upgrade...

no problem to replace by a skilled engineer Compressor cost for a 12v comp £250 expensive! and refrigerant may be a R12 no longer avaiable best bet replace all unit
 
Quite easy to replace whole unit; off the shelf isotherm units available most chandleries & most are fairly quiet. If you want complete silence then there are thermo-electric coolng plates but I thimk these use more current & probably not so good.
 
Best solution for quiet nights is to have a big gel filled stainless box unit in the fridge, driven by the compressor. (I think the unit in fridge compartment is called the evaporator).
By doing this you can turn the fridge off at night, and the frozen gel will keep the fridge contents cold until you turn the compressor back on in the morning. This system works fine for me in Turkey, where day temperatures are in the high 30's Celsius, and it stays pretty warm at night.
Whether your existing compressor could be used with a gel evaporator I don't know. My own fridge has two separate systems, the original Danfoss compressor and evaporator, and a second water cooled compressor driving the gel evaporator. The original unit is only used as a backup. The water cooled compressor is more efficient, and can be driven from the engine via a 1200 watt inverter, which has automatic sensing of mains connection.
 
Have you tried switching it off at night, mine is right by my bunk,door stays shut allnight, then back on first thing in the morning.
PS mine is a new compreessor as well.
 
I can't help thinking a new compressor may not solve your problem.
Is the noise coming from a cooling fan? or does your compressor have rubber isolation mounts and if so are they still in good condition?
I suggest a little carefull snooping (listening) may help otherwise turn off at night. good luck ....olewill
 
Unless you change to a eutectic solution, I don't think you'll gain by changing the Danfoss compressor. If it's noisy bearings, I'd change them - failing that I'd do as suggested and get into a regime of turning the fridge off at night. In my case, I added some sound proofing to the area where the compressor is housed, and rarely am troubled by the unit cycling.
 
In my new fridge with a Danfoss compressor it's the fan that makes most of the noise, and even if it didn't the compressor is not particularly quiet. Maybe look into a water coooled model if noise is your main concern. A friend of mine has one and although it is quietter than my fan cooled model, it's always gonna sound like you're sleeping in the kitchen.
 
I installed a new Danfoss unit over the winter, with the compressor in the cupboard under the sink. At night I deliberately open the door of the cupbaord to let air circulate. The unit is virtually silent ! The fan makes a slight noise but hardly intrusive. In no way would it stop you getting to sleep. I suggest that you change the entire unit - mine cost circa £330 for compressor, cooling plate and thermostat.
 
our's is just the same, i was recommended to get a new fridge for a few hundred more as opposed to getting a new part. new fridges are are more efficient and there will be less drain on the batteries.
 
If it's an ASU filled with Freon 12, don't change.

What you could do to reduce noise and electric consumption is to duct air to and away from the compressor.

That reduces noise and halves the time it runs.

I did change, and the more modern replacement, though with more bells, whistles and lights was not as efficient.

The water-cooled ones are even noisier (unless you have one of the inadequately cooling replacement-for-a-seacock outlet) because of the constant splash of the water returning to the sea.
 
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