What error code appears when the pump filter is clogged, and how do I fix it?

Error code '5C' appears on the screen when the pump filter is clogged. To fix it, turn off and unplug the machine, drain remaining water using the emergency drain, then open the filter cover, turn the pump filter knob left, and clean the filter using a soft brush. It is advisable to clean the pump filter 5 or 6 times a year to prevent clogging. (Page 39)