Arrived at location on 10/13/21 - While doing pm found high float probe wasn't allowing ice to make proper thickness of ice. Tried to adjust thickness probe and unit wouldn't recognize adjustment. Removed side over and tested probe magnet by moving magnet up and down probe. Found up or down unit wasn't turning off led light to recognize water level. Called supply house they had one in stock. Picked up new thickness probe and returned. Installed new probe and tested operation unit made ice with proper thickness achieved all ok.