What is the ideal refrigerator temp setting on a smeg sr650xa

You don't say ideal temperature of what, but as you posted to refrigerators, the ideal temperature is 3' Centigrade or 38' Fahrenheit.

Freezer is -18' C or 0' F.

Cheapest way is to buy a simple thermometer and place it inside, do get an accurate one as they can vary a couple of degrees.
3C or 37F is optimum temp for a refrigerator.

Hi...the same thing has happened to me. My Smeg Fab28 refrigerator compartment has stopped cooling. The freezer still works. There was a build up of ice on the back fridge wall, and the milk was freezing up, so I turned down the temp. After the ice melted, I heard a bang like a bunch of ice had dropped. I turned the temp back up but it steadily stopped cooling even more. I decided to defrost the freezer, and had the power off completely for about 5 hours. When I turned it back on, the freezer worked, but the fridge is not cooling AT ALL.

Did you fix the problem and if so, how?

Thank you
Bev

The higher the number the colder the temp is supposed to be.

In order to prevent the formation of bacteria and other such organisms to affect food the way it does, the ideal temperature range of refrigerators has been mentioned here. Before we look at these settings, it is important to know the format in which temperatures are represented within a refrigerator. Commonly, you will notice a dial representing the figures 1-5 or 1-9 in the refrigerator, and a dial representing the letters A-E in the freezer. The ideal setting is usually in the middle of such figures.

If the dial is in such a format in your refrigerator, try a setting at 3 if the range is 1-5, and at 4 if the range is 1-9. For the freezer, a setting at C is suitable.

The ideal temperature in the refrigerator ranges between 34 degrees F - 38 degrees F or 1 degrees C - 3 degrees C. So that foods such as vegetables and fruits remain fresh and crisp, the temperature may be set around 38 degrees F or 3 degrees C.
The ideal temperature in the freezer ranges around 0 degrees F (-18 degrees C) or lower.
Read more at Buzzle: http://www.buzzle.com/articles/refrigerator-temperature-settings.html

Set your Ref/Freezer per the following:

Refrigerators: 36 to 40 degrees. Ideal temp is 37 Fahrenheit. Note: A temp above 42 degrees promotes bacteria.
Freezer: temp should be -5 to 6 degrees Fahrenheit. Ideal temp is 0 degrees.

You have to wait about 4 hours for everything to stabilize. If you are still having ice forming inside the freeezer then the rubber seal around the door is probably the problem. If they have a split, tear or crack, etc. it will let warm moist house air into the freezer and turn to ice as it cools. If this happens in the refrigerator it'll turn to water and collect in the bottom of the frig. New seals can cost around $60 per door.

If you pack too much food in the unit it may also cause freezing because the air needs to move around in there and food shouldn't block the vents in the back walls of the unit.

Hopefully this helps..

Your Refrig/freezer should be set as follows:

Refrigerators: 36 to 40 degrees. Ideal temp is 37 Fahrenheit. Note: A temp above 42 degrees promotes bacteria.

Freezer: temp should be -5 to 6 degrees Fahrenheit. Ideal temp is 0 degrees.

Then check the door seals around the edges to see if any splits, tears or cracks have messed up the seal. This will cause your compressor to constantly run as it's trying to cool off the warm house is being sucked into the freezer (or Refrig). A sure sign the door seals are damaged is lots of ice in the freezer door area or water pooling in the bottom area of the refrigerator.

Wait about 4 hrs after you readjusted the Refrigerator/Freezer settings so everything settles down. If you still have problems then the coolant may need to be serviced (topped off) or the motor serviced/checked.

Don't procrastinate because a water heater and Refrig/freezer are the 2 largest energy users in your home- they run 24 hrs a day.

Hope this helps...

going the wrong way to make it warmer.

dear sir /madam
the ideal freezer temperature is 0 fahrenheit(-18 celsius) for storing food. and - 10 fahrenheit (-23 celsius) is recommend when freezing food.
and generally 3 to 5 celsius (37 to 41 fahrenheit) is ideal for refrigerator

hope answer the question
thank you
please vote!

For most freezer sections of a refrigerator, zero degrees F is ideal. -2 to +5 range is acceptable, but the warmer temps will reduce icemaker productivity, while colder temps might make that ice cream as hard as bedrock.