This error occurs when water fails to drain from the machine by the drain time as set by PSB software.
Unplug the machine, then remove and rinse the pump filter.
Also, it is advisable to check the hose for clogs. Make sure it is installed properly.
Cleaning the filter
Open the filter cover using a key or some sharp object.
Pull out the hose, unblock it and let excess water get out of the pump.
Remove the filter and clean it from debris and/or foreign objects (if any). Then put the filter back in its place and close the cover.