LG dishwashers are popular for their efficiency and ease of use, but even the most reliable appliances can run into problems. When something goes wrong, your LG dishwasher will display an error code to help identify the issue.
This guide explains where LG dishwasher error codes appear, what each code means, why it happens, what you can safely check, how to reset your LG dishwasher, and when professional repair is the right choice.
Where LG Dishwasher Error Codes Appear
LG dishwasher error codes typically show on the digital display panel on the front of the unit.
- Codes may appear during a wash cycle, while filling, or when draining
- Most LG dishwasher error codes use two letters, such as OE, LE, or AE
- In many cases, the dishwasher will stop running to prevent leaks or damage
Always note the error code before turning off or resetting the dishwasher.
LG Dishwasher Error Codes Explained
LG Dishwasher Error Code Finder
Select the code on your LG dishwasher display to see what it means and what to check first.
What this means
What you can try
OE – Drain Error
This is one of the most common LG dishwasher error codes. It means the dishwasher is not draining water properly.
Why it happens:
- Food debris blocking the drain filter
- Kinked or clogged drain hose
- Drain pump issue
What you can do:
- Clean the dishwasher filter
- Check the drain hose for kinks or blockages
- Cancel the cycle and allow the unit to drain
If OE continues, the drain pump may need professional repair.
LE – Motor Error
LE indicates a problem with the motor operation.
Why it happens:
- Motor overload
- Wiring issue
- Control board problem
What you can do:
- Turn the dishwasher off
- Unplug it for 15–20 seconds
- Plug it back in and restart
Repeated LE errors usually require professional service.
HE – Heating Error
This error means the dishwasher is having trouble heating the water or regulating temperature.
Why it happens:
- Faulty heating element
- Temperature sensor issue
- Control board problem
What you can do:
- Reset the dishwasher
- If dishes are not drying or water is not heating, professional repair is recommended
nE – Diverter (Vario Motor) Error
nE points to a problem with the diverter motor, which controls the spray arms.
Why it happens:
- Diverter motor failure
- Wiring issue
What you can do:
- This error requires professional diagnosis and repair
FE – Overflow / Overfill Error
FE appears when the dishwasher detects too much water inside the unit.
Why it happens:
- Faulty inlet valve
- Water not draining correctly
- Float switch issue
What you can do:
- Turn off the dishwasher
- Shut off the water supply if needed
- Reset the unit
Persistent FE errors should be handled by a technician to prevent leaks.
AE / E1 – Leak Detected
This error means the dishwasher has detected water leakage in the base of the unit.
Why it happens:
- Loose or cracked drain hose
- Improper installation
- Excess detergent or incorrect detergent type
- Improper loading of dishes
What you can do:
- Check for visible leaks
- Make sure the drain hose is installed correctly
- Use only recommended dishwasher detergent
If AE or E1 returns, professional repair is required.
CE – Motor or Wiring Error
CE indicates a problem with the motor or wiring harness.
Why it happens:
- Electrical issue
- Motor failure
What you can do:
- Turn the dishwasher off
- Reset the unit
If the error reappears, professional service is recommended.
PF – Power Failure
PF appears when the dishwasher experiences a power interruption.
What you can do:
- Check your home’s power supply
- Once power is stable, press and hold any button for 10 seconds to clear the code
tE – Thermistor (Temperature Sensor) Error
This error indicates the dishwasher cannot properly detect water temperature.
Why it happens:
- Faulty thermistor
- Wiring issue
What you can do:
- Reset the dishwasher
Most tE errors require thermistor replacement by a technician.
iE / 1E – Water Inlet Error
This error means the dishwasher is not filling with enough water.
Why it happens:
- Water supply valve is closed
- Kinked or blocked inlet hose
- Faulty inlet valve
What you can do:
- Ensure the water supply valve is fully open
- Straighten the inlet hose
If the error continues, the inlet valve may need replacement.
How to Reset an LG Dishwasher
To reset most LG dishwashers:
- Turn the dishwasher off
- Unplug it or turn off the circuit breaker
- Wait 5–10 minutes
- Restore power
- Start a new wash cycle
If the same error code comes back, the issue is not temporary.
When to Call a Dishwasher Repair Technician
You should contact a professional if:
- Error codes keep returning after reset
- The dishwasher is leaking water
- It won’t drain, fill, or heat properly
- You notice burning smells or unusual noises
Ignoring dishwasher error codes can lead to water damage or electrical issues.
Contact Us For LG Dishwasher Repair
LG dishwasher error codes are helpful, but they don’t always tell the full story. If your dishwasher keeps displaying error codes or stops working properly, professional service is the safest option.
Alpha Tech Appliance provides reliable LG dishwasher repair in Toronto and the surrounding areas. Our experienced technicians handle drainage issues, motor errors, heating problems, leaks, and control board faults safely and efficiently.
Contact Alpha Tech Appliance today to schedule your LG dishwasher repair and get your kitchen back to normal.