A guide to error codes and status messages on LG Dishwashers, with documented meanings, safe checks and when to call a technician. Codes vary by model and market.
- Codes can differ between models and markets; your model's manual is the primary reference.
- Some display messages are status notices or features (like child lock CL), not faults.
- On some displays the code is preceded by Er (e.g. Er FF on refrigerators).
- Restarting after unplugging for a minute may clear a code temporarily, but if it returns there's a cause to fix.
Codes
Leak / overfill
Error codePer LG, AE (grouped with E1 and FE on some models) indicates a leak or too much water supplied.
Possible causes
- Suds from hand dish soap
- Large items deflecting water at the door
- Unlevel unit or misaligned door
Safe checks you can do
- Place large items upside down
- Use dishwasher detergent only
- Check levelling and door alignment
If the code persists or there's no visible leak, unplug and request service as LG advises. The technician checks the base, leak detection, hoses and valve.
Related guides
Water inlet error
Error codeThe required amount of water isn't reaching the tub.
Possible causes
- Water outage
- Kinked inlet hose
- Valve closed after installation or a move
Safe checks you can do
- Confirm water supply
- Straighten the hose
- Open the inlet and shut-off valves (anticlockwise)
If it persists after checks. The technician tests the inlet valve, float and board.
Related guides
Drain error
Error codeThe tub isn't draining fully.
Possible causes
- Clogged filter
- Kinked drain hose
- Hose end too low
Safe checks you can do
- Clean the filter once cool (every 1–2 weeks per LG)
- Straighten the hose and keep its end at least 30 cm high
- After a power cut, restart or force drain by holding Start for 3 seconds (per LG)
If water keeps pooling above the filter. The technician tests the drain pump and check valve.
Related guides
Heater error
Error codeWater isn't being heated.
Possible causes
- Heater or circuit fault
Safe checks you can do
- No user checks per LG
Request service. The technician measures the heater, circuit and board.
Related guides
Temperature sensor error
Error codeProblem with the temperature sensor.
Possible causes
- Sensor or wiring fault
Safe checks you can do
- No user checks per LG
Request service. The technician tests the sensor and wiring.
Related guides
Wash motor fault
Error codeMalfunction of the wash (circulation) motor.
Possible causes
- Motor or wiring fault
Safe checks you can do
- No user checks per LG
Request service. The technician tests the wash pump, wiring and board.
Related guides
Bubble error
Error codeHeavy suds from hand dish soap or too much detergent.
Possible causes
- Hand soap
- Excess detergent
Safe checks you can do
- Stop using hand soap
- To clear suds per LG: set rinse aid to L0, add no detergent, place 200 ml of milk in a bowl on the upper rack and run Standard with Extra Dry and Rinse, then restore the rinse-aid setting
If bE appears with no suds present. The technician checks the sensor and circuit.
Related guides
Vario pump error
Error codeThe impeller isn't spinning normally or dishes are touching it.
Possible causes
- Items obstructing
- Pump fault
Safe checks you can do
- Rearrange dishes and restart
If the code persists. The technician tests the Vario pump and wiring.
Related guides
Water level sensor error
Error codeWater level sensor issue (certain older models).
Possible causes
- Sensor fault
Safe checks you can do
- No user checks per LG
Request service. The technician tests the sensor.
Related guides
Control lock (feature)
Status message / featureThe control panel is locked; it stays locked after power cycling until released.
Possible causes
- Lock activated
Safe checks you can do
- Per LG for many models: hold Half Load and Energy Saver for 3 seconds
If it won't release. The technician tests the panel buttons.
Related guides
Other codes and messages
| Code | Meaning / action |
|---|---|
F31 | Heat Dry fan issue (Dynamic Heat Dry models) — request service. |
F35 | Heat Dry temperature reading issue (Dynamic Heat Dry models) — request service. |
F37 | Auto-open door error — make sure nothing blocks the door; request service if it persists. |
Fault guides
LG Dishwasher Not Draining: Filter, Drain Hose and the OE Code
Water left in your LG dishwasher or OE on the display? Clean the filters, check the drain hose and its height, the kitchen drain—and when the pump is to blame.
LG Dishwasher Not Cleaning Dishes: Spray Arms, Loading and Detergent
Food residue or white spots after an LG dishwasher cycle? Blocked spray arms, loading pattern, detergent type, hard water and heating explained.
LG Dishwasher Not Heating Water: The HE and tE Codes
LG dishwasher not heating, dishes cold and wet? What HE and tE mean, what you can check, and why heating faults need a technician.
LG Dishwasher Leaking or Showing AE: Suds, Levelling and the Door Seal
Water on the kitchen floor or AE on your LG dishwasher? Suds from hand soap, levelling, the door seal and connections—and when to call a technician.
LG Dishwasher Won't Start: Control Lock, Door and Water Supply
LG dishwasher not starting? Control lock (CL), door latching, power and water inlet (IE) explained with safe steps before calling a technician.
FAQ
Are LG codes identical across models?
No. A code's meaning or form can vary by model, market and appliance type.
What if my code isn't listed here?
Check your model's manual, or send a photo of the display and the model on WhatsApp.
Can I ignore a code that disappears after restarting?
If it doesn't return it may have been transient, but repeated codes mean a cause needs fixing.
The code meaning was reviewed against these public LG support pages: