Power off a few hours and defrost the device manually.
Check if there is display in fridge temperature area of the display panel. If no display but other function display normally, it indicates that the fridge storage compartment is turned off.
Please turn on the fridge compartment，usually the control operation :In the unlocked status, press" fridge Temperature Control Button “ for 3 seconds, the fridge can be turn on or off.
Notice, some refrigerator , the fridge can’t be turned off.
If the fridge temperature area still displays 17℃. the refrigerator is in holiday function, you should turn off the function, usually the control operation :In the unlocked status, press "Function Select Button", select the Holiday function, if the holiday icon displays, Holiday function is on, otherwise , the function is off.
Check if the cold air outlet at the upper part of the fridge compartment is blocked by food and no air can blow out
Remove the food to keep the air outlet unblocked.
In winter, maybe the environment temperature is less than 10℃，it is same as the temperature in the fridge，we feel it is not cool, in fact it is normal.
The operations are not the same for different models, if you want to control, please refer to the user manual.