First, whats the make of the refrigerator, second, take a picture of it for my references
+
+
=== Update (09/11/2020) ===
+
Ok, if its an LG then here is your answer, The LG '''error code Er 1F''' may mean the ice maker blower fan motor is not functioning and could be faulty or there may be a wiring issue with the ice maker blower fan motor. In this case, either the motor has to replaced or repaired or the wiring has to be fixed.