There may be a few different reasons why the LE error code can display on your dishwasher. LG dishwasher getting the LE error code? The LE error code on the LG dishwasher display is an indication of a MOTOR ERROR. The 5 issues that may cause this fault code is a wiring problem (most common reason for LE error), the impeller of washing pump is locked, the rotor of washing motor is locked, the blade is locked, or the PCB main control board is faulty. 

5 Parts or components that will cause the LE error code on your LG Dishwasher:
1 – Wiring Connection or Wire Harness (Broken damaged wiring connection or Loose wiring connection)
2 – Impeller of Washing Pump is Locked (Impeller will not move – Frozen/locked)
3 – Rotor of Washing Motor is Locked (Rotor will not move – Frozen/locked)
4 – The Blade is locked (Locked Blade causing error message)
5 – PCB Main Control Board (Faulty Main PCB Board)