Common LG dishwasher error codes include IE, OE, EI and FE. Other common error codes are tE, LE, PF and HE. These error codes help to diagnose problems with the LG dishwasher and determine what particular repairs are needed.
The IE error code signifies an issue with the water supply or the water inlet, the OE error code indicates a problem with the drainage and the EI error code implies a water leakage issue. The error code FE indicates that too much water is entering the dishwasher, making the drain pump run continuously. Error code tE signifies a defective thermistor, error code LE indicates a fault with the wash pump and error code HE means theres a problem with the heater circuit.