Error code
5C
Meaning
The water collection tank is full or the drain is blocked
Moderate
What to do
Why this happens
Possible causes include a full water tank requiring emptying, a malfunction in the drain pump or float sensor, or an obstruction such as a kinked or blocked drain hose.
How to fix it
Empty the water tank and clean the drain filter. If the error continues with an empty tank, the drain pump or float switch may need service — a technician can help.
SourceSamsung service manual / Customer Repair Guide