How an LG dishwasher reports a fault
An LG dishwasher runs its fill, wash, heat and drain through sensors and a control board, so when a cycle stalls it shows a short code rather than failing silently. Reading the code is the quickest route to an accurate LG dishwasher repair, because each one points at the inlet valve, the wash motor, the heater, the drain path or a leak sensor. The codes apply across the LDF, LDP and LDT model families.
The codes you will see
IE means water is not filling correctly — the supply, the inlet valve or the float. OE is a drain error, the most common code, usually a clogged filter, drain hose or pump. FE is an overfill. LE (or CE on some models) points at the wash motor. HE is a heater fault, tE a thermal or thermistor fault, and AE/E1 a leak detected by the base-pan float or Aquastop. PF is a power-failure prompt. CL is the child or control lock, which is a setting, not a fault.
What an OE or AE code really means
An OE drain code is rarely the pump itself — far more often the cause is the filter at the base of the tub, a kinked or clogged drain hose, or a blocked air gap. An AE/E1 leak code means the base-pan float has risen, so the unit cancels the cycle to protect your floor; the source is usually a hose fitting, a door gasket or an over-sudsing detergent rather than a catastrophic failure.
What to check, and when to call
For OE, clean the filter and check the drain hose and air gap; for IE, confirm the supply is open. A persistent OE after cleaning, an LE motor fault, an HE heater fault or an AE leak you cannot trace needs an experienced technician with genuine parts. Work through the OE drain-error guide and the AE/E1 leak guide, see the full list in the error codes library, then book dishwasher repair. Confirm your model on the manufacturer’s site at lg.com/us.