Check to see all of your filters are clear. There are float switches or sensors under the water that can get stuck down when they are dirty. After you reset the unit and the water has pumped out, go in with a screwdriver and remove all the covers and screens. Clean everything. If you have sensors or floats, clean them out too.
Be sure to remove all covers as fine particles can make it through some of the micron filters and clog pumps.
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Regards
Frank