What LG codes actually mean
On LG front-load washers, OE means the machine couldn't drain, IE means it couldn't fill, UE points to an unbalanced load and LE to a motor problem. Each is routine front-load washer repair once the cause is confirmed. On LG dryers, the Flow Sense system warns with d80, d90 or d95 when the exhaust vent is 80, 90 or 95 percent restricted. That last one surprises people: the dryer itself is fine, but the vent outside is choking it.
We treat each code as the start of the diagnosis. An OE may be a sock in the pump, a kinked drain hose or a worn pump. A d80 calls for a dryer vent cleaning, not a new dryer. Nothing gets ordered until a meter reading confirms which of those it is.
LG refrigerators add their own patterns: ice makers that stop when the ice fan or duct freezes, cooling problems on some models with the linear compressor, and water leaks from frozen drains. We check airflow and temperatures carefully before deciding whether a repair is a fan, a sensor or something in the sealed system. Ice makers are the most common of these, and ice maker repair on an LG usually starts at the ice fan.