LG brand
switch off at the wall point
wait a bit
start again
if its not in the user manual and no one can figure out why
if it still beeps some part of that unit has failed or needs to be reset
no other choice but to call out a lg repair man
Could be the hinge, most likely the lower hinge. Fridge hinges usually have a plastic insert in the door to prevent metal to metal contact. This insert sometimes wears prematurely and then metal may start to make contact , thus the grinding sound. The insert can be changed fairly easily if you are so inclined.
When the refrigerator and freezer reach the set temp, the blinking stops. – If the blinking does not stop, unplug the refrigerator for about 30 seconds to reset the processor. – If the display still blinks it may indicate a problem within the freezer.