Hi i have samsung rs21dcns fridge freezer serial no 854043cwb02634 a the fridge temperature wont go below 10 degrees

Many residential refrigerator / freezers are designed to work at temperature considerably above above freezing. Most modern refrigerator / freezer have a single electric thermostat - located in the fresh food compartment. This lone thermostat will control the compressor to keep the fridge (fresh food) section at the desired temperature (usually between 34 - 38 degrees F). The freezer will get colder regardless of how cold it is already whenever the fridge thermostat turns the compressor on.

Now that you see how the thermostat works, let's look at what happens when the fridge is placed in an unheated space - like a garage. In winter time, the temperature can drop considerably below 38 degrees. If the outdoor temperature remains cold enough, for long enough - it will affect the thermostat in the fridge. The temperature inside the fridge could drop below 38 degrees, preventing the thermostat from telling the compressor to turn on. Meanwhile, the temperature in the freezer compartment slowly rises from the normal -10 to 0 F degrees. It will continue to rise until it is the same temperature as the fresh food compartment or until the thermostat in the fresh food compartment tells the compressor to turn on again. This means the freezer contents will thaw.

If the temperature in the garage is even in the 40 to 50 degree range, the loss of cold in the fridge may not happen often enough to keep the compressor coming on often enough to keep some freezer items frozen solid - such as ice cream. Remember, water freezes at 32 degrees F, other products may require lower temperatures to remain frozen, and could thaw at 28 or other temperature.

Good luck!

The settings are "relative". Someone with this fridge in Montana may need to run the same fridge with different settings than someone in Texas to get the same temperatures.

Many manufacturers recommend that the fresh food compartment should be 34 degrees F, and the freezer -10 to 0 degrees F. To set this properly, place a thermometer in the freezer (that can display temperatures as low as the desired temperature). Adjust the thermometer for the correct freezer temperature before going on to the fridge. A fully stocked freezer could take 12 hours or more for temperatures to stabilize after making changes to the thermostat. Once the -10 to 0 degree temperature has been achieved, set the fresh food compartment temperature.

Place a thermometer (that can display below freezing) in a 6 (or so) oz flexible plastic cup of water and place on a shelf in the fridge. A glass of water could break if the temperature gets below 32 degrees if the water turns to ice. The water acts as a buffer to rapidly changing temperatures when the door is opened to read the thermometer. If the fridge is "full", allow 24 hours for the temperature to stabilize before making changes.

If the fridge and freezer are empty, changes may be seen in just a few hours or less. Otherwise, wait the 12 / 24 hours for the freezer / fridge compartments.

I hope this helps and good luck!

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If it's American, the temperature probably reads as fahrenheit. If so, 20 degrees F is 12 degrees F below freezing which converts to only -6.67 degrees Celsius.

Domestic freezers should be set to -17 degrees Celsius (= 0 degrees F), so the beeper is warning you that the freezer compartment is far too warm. If it's working correctly and has the temperature control set correctly, then it should achieve the correct temperature if you leave it for 24 hours and do not open the door nor try to use the ice dispenser. If the freezer is full of unfrozen items and so has to cool those down as well, then it may take even longer to reach the correct operating temperature.

Te operating manual for your appliance will tell you how to set the temperature correctly and whether it's possible to select between fahrenheit and Celsius scales. Most models allow you to set an override on the beep alarm as well. I cannot guide you on this without knowing the exact Samsung model.

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ambient temp 10/35 degrees C.not in direct sunlight,
did you use a level to make sure that it is level in all planes,just to make sure all the door seals are tight,
(look along the seals to make sure)the unit should be left on for at least 24 hours in its chosen position with the doors shut,then check temp,it could take another 12 hours to settle down once loaded.Also make sure that its not touching the wall cuts down on vibration.
once checked,if still not right call samsung..they are good.

20 degrees seems like a good temp for your freezer!!!

Sounds like you have the freezer temperature set too low.

0845 726 7864 samsung know of this problem and are doing free fixes to all of them just phone the number it doesnt matter about the warranty as they have extended them all free to 5 yrs.

There are numerous problems including noisy fan that stops when doors open to no water and all are free to fix.

Hope this helps.

sounds like the defrost thermostat is the problem. since it's located in the back of the fridge, behind the access panel, i would have a technician look at it.

as a rule of thumb mfgs say give the unit 24 hrs to stablize where are you gettings the readings the fridge or freezer sides freezer readings run from -8 to -10 the fridge should run 34to38