Chase F Southlake , TX December 17, 2015 Appliance: Samsung Dishwasher DMT800RHS/XAA Samsung Dishwasher Dmt800rhs/Xaa / : Showing oe error code. How to replace Assy-Case Sensor;Dmt800,. I had a Samsung dishwasher (DMT800RHS) that would quit a minute or two into a wash cycle with the error code oE. I replaced the case sensor on the water panel with the new one I ordered here. It was pretty easy to swap the parts. After flipping the breaker and turning the water supply back on, it immediately gave me the error code LE which means water leakage is being detected, and would cycle on the pump to drain. I turned the unit over and removed the plastic tray on the bottom (the water sensor is connected to this), and noticed residual water on the pump and tray. After drying everything out, I reassembled and started it up. Works perfectly now! 3 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 2+ hours