Refrigerator does not work, the refrigeration effect is poor

The door is too tight and not so easy to open

There is a sound like a water ripple in refrigerator

There is a “Click” or a "Tick" sound in my refrigerator

There is an abnormal sound in refrigerator

The freezer door almost opens (slighty/half opens) itself for the while during the closing of the refigerator door.

Is it possible to set the "OF" (or "0F") on the control panel (display panel) for the refrigerator compartment? What does it mean?

The sides of the fridge are warm or hot

The surface between fridge chamber and freezer chamber is warm

Foods in refrigerating chamber are frozen

There is condensation or frosting at the freezing chamber door surface or food surface