I have a Liebherr ref-freezer. I would like to know ideal temperature setting. It is set at -19 deg. but ref and freezer are not cold enough. Am worried food will not keep.

Their are no direct connections between the number and the temperatures on refrigerators and freezers. Is is based on surrounding temperature, in the room. That is the reason they used numbers and do not mark teperatures.

Hi,

If the refrigerator is not cold enough then please check the following and also click on the blue coloured links for more info.

• Check the temperature setting
• Assure that there is enough room for air flow in the refrigerator or freezer
• Check for air flow restrictions in vents
• Test the temperature control
• Clean the condensor coils
• Check the door seals
• Test the door switch
• Test defrost heater
• Test defrost timer
• Test evaporator fan
• Check for a clogged drain tube
• Check for refrigerant leak

How To Check the Temperature In most refrigerator freezers, the refrigerator gets its cold from the freezer. The evaporator fan circulates air over the coils in the freezer and cold air circulates into the refrigerator through vents. If the vents are blocked or closed, then the fridge will not get cold enough but the freezer will. If neither is cold enough, then the number of possibilities increases.
Lowering the freezer temperature will increase the cooling cycle activity. Setting the refrigerator temperature may have little affect on the cooling cycles because it simply changes the vent opening size. Decreasing the fridge temperature opens the vents more and increases air circulation from the freezer.
The temperature can be adjusted using the controls found inside the refrigerator or freezer. The ideal freezer temperature is about 0 to 5 degrees (F) and about 38 degrees (F) for the fridge.
Measure the temperature by placing a cup of water with a cooking thermometer into the refrigerator for about 2 hours or more. To test the freezer, substitute alcohol or cooking oil.


Goodluck,
Please don't forget to rate the solution.

You need to check a few things -
1. settings for the temperature are not set too low. Not cold enough.
2 there is no leakage through the door seals.
3. there is not too much ice formed inside the freezer walls. Needs defrost.
4. the fridge is not overloaded with stuff - not enough capacity to cool things.
5. Not enough free space behind the fridge to allow air movement for coils to cool
Please provide more details of the problem if above not helping. For example model number, is the problem happening both in freezer and refrigerator settings. Get a fridge thermometer and monitor temperature in both sections. should be 4 deg C in fridge and -18 deg C in freezer after stable operation.

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

Basically the thermostat controlls the freezer temperature which turns the compressor on and off.
The refrigerator section receives cold air from the freezer to cool it down.
So when the freezer is off there may not be enough cold air left for the refrigerator.
Fridges can never give you a perfect temperature every time there will always be a drift one way or another.
Once you reset the temperature the numbers or an led should blink at you to confirm the changes you made

-18 to -19 deg

The freezer should be between -5 to +5 deg.F. The refrigerator should be from 33 to 40 deg. F. but it is really a matter of preference. I set mine around 5 and 33. I like to get my ice cream out and be able to scoop it and I like my milk very cold. Start with the manufacture suggested and then adjust from there with your own preference.

The two flahing lights are normal if the freezer is warm. It will display temperature when it gets cold. If it doesn't get cold there is another problem.

Check the settings for the freezer control. Refrigerator temperature control normally controls the run time of the compressor. if the freezer control is set to low the refrigerator temperature will be fine and the freezer will be warmer. Setting the freezer control to a colder setting will hold back more cold air in the freezer and reduce the air volume supplied to the refrigerator. Check and make sure the condenser coil is clean.

replace the fan as quickly as possible it may be shorting and causing damage to your control board,