What is the information code '4C' and what does it mean?

The information code '4C' indicates that the mesh filter is clogged. You should clean the mesh filter of the water hose by turning off the washer, unplugging the power cord, closing the water tap, and disconnecting the water hose from the back of the washer. Use pliers to pull out the mesh filter and submerge it deeply in water to clean it before reinserting.