Your dishwasher stops mid-cycle and flashes a code you have never seen before. The first thought is whether it is a quick fix or an expensive repair.
LG dishwasher error codes help identify the exact issue before you call for service. Each code points to a specific problem, making troubleshooting faster and easier.
Instead of guessing, you can match the code on your dishwasher display and understand what needs attention. This can help prevent unnecessary service visits for minor issues you can handle yourself.
Every common code is explained clearly, with a video showing how to spot it visually and simple steps on when to fix it yourself versus calling a technician.
What Do LG Dishwasher Error Codes Mean?
LG dishwasher error codes are two-letter or alphanumeric signals your unit displays when it detects an operational issue. Each code points to a specific system, from water intake to internal heating.
These codes appear directly on the control panel display during or after a cycle. Reading them correctly helps you pinpoint the problem without guesswork.
LG’s support documentation confirms that these codes follow manufacturer-approved troubleshooting steps, not assumptions.
These codes can help identify common issues and prevent unnecessary service calls. Some codes indicate problems, while others simply show the appliance’s current status.
How to Diagnose LG Dishwasher Error Codes Visually
Source: : LG USA Support
The fastest way to identify what’s wrong with your dishwasher is to watch the exact codes appear and hear them explained step by step. This official LG walkthrough breaks down the most common error codes as they show up on a real unit.
This video covers the IE, OE, and E1 error codes directly from LG’s own support library, showing the exact troubleshooting steps for water inlet, drainage, and leak detection issues.
Watching it alongside your own display makes it easier to match the code and confirm the fix before attempting any repair.
Since this walkthrough comes straight from LG’s official channel, it reflects manufacturer-tested solutions rather than third-party guesswork, giving you a reliable first step before deciding on DIY fixes or professional repair.
LG Dishwasher True Error Codes (Require Troubleshooting)
These LG dishwasher error codes point to specific issues that may need attention or simple fixes.
Check the following sections to identify the code, understand the cause, and try the recommended troubleshooting steps.
1. bE – Suds/Detergent Error
The bE code appears when your dishwasher’s suds sensor detects excessive foam inside the tub. This usually happens when you use regular dish soap instead of dishwasher-formulated detergent.
To diagnose this visually, open the door mid-cycle and look for bubbles rising above the bottom rack. Overflowing foam near the door seal confirms the sensor has correctly triggered the code.
To fix: Switch to a dishwasher-safe detergent and check that the unit sits level front-to-back and side-to-side. If suds remain visible, pour a few ounces of milk into the tub and run the AUTO cycle to break down the foam.
2. AE / E1 – Leak Detected
AE and E1 both signal that water has reached the float switch in the base pan. This is your dishwasher’s built-in flood protection kicking in before water escapes onto your floor.
To diagnose this visually, check the floor around the unit’s base for damp spots or pooling water. Pulling the dishwasher out slightly can reveal water collecting underneath the tub.
To fix: Turn off the power and water supply immediately, then inspect the door gasket, hose connections, and sump area for the leak source. If you can’t locate it yourself, this code typically requires a technician visit.
3. IE – Water Inlet Error
IE means the water level inside the tub failed to rise high enough within ten minutes of filling. A blocked, kinked, or shut-off supply line is almost always behind this code.
To diagnose this visually, trace the water line from the shutoff valve to the dishwasher, checking for any bends or pinch points. Low water pressure readings below 20 PSI often accompany this exact symptom.
To fix: Open the supply valve fully and straighten any kinked hoses along the line. If pressure remains too low even after these checks, contact a plumber to correct the household water pressure.
4. LE / CE – Motor Error
LE and CE both point to a fault with the wash motor or the wiring connecting it to the control board. The dishwasher locks operation to prevent further strain on the component.
To diagnose this visually, listen for grinding, humming, or complete silence where you’d normally hear the motor during the wash phase. A stuck or jammed impeller often produces this telltale noise pattern.
To fix: Power off the dishwasher at the breaker, wait ten seconds, then restart a new cycle. If LE or CE returns after this reset, the unit will need professional motor inspection.
5. OE – Drain Error
OE signals that your dishwasher isn’t draining water properly at the end of a cycle. Clogged filters, blocked hoses, or a faulty garbage disposal connection are the usual suspects.
To diagnose this visually, check for standing water pooling at the bottom of the tub after the cycle finishes. Inspect the drain hose for visible kinks and the mesh filter for trapped debris.
To fix: Clean out the filter and straighten the drain hose, then verify the garbage disposal’s knockout plug has been removed if newly installed. Reconnect the hose with a tight seal before running another cycle.
6. FE – Fill Error
FE appears when the dishwasher detects too much water entering the tub during the fill phase. The drain pump activates automatically to remove the excess and protect the unit.
To diagnose this visually, watch for the cycle pausing mid-fill while pump noise runs continuously in the background. This often coincides with a stuck water inlet valve or relay.
To fix: Power off the unit at the circuit breaker and wait ten seconds before restarting a new cycle. If FE persists after this reset, the water inlet valve likely needs replacement.
7. HE – Heater Error
HE indicates the internal heater has either failed to warm the water or overheated past the 149°F safe limit. Both conditions trigger the same protective shutdown response.
To diagnose this visually, check whether dishes come out unusually cold and undried, or notice excess steam during the cycle. Either extreme points toward the heater malfunctioning.
To fix: Reset the dishwasher by cycling the circuit breaker off for ten seconds, then restart the wash. If HE keeps returning, the heating element will need professional replacement.
8. nE – Vario Motor Error
nE flags a problem with the Vario motor that controls the movement of the spray arms. This component manages water pressure and direction throughout the wash cycle.
To diagnose this visually, check dishes for uneven cleaning patterns, especially on racks farther from the spray source. Weak or absent spray movement often accompanies this code.
To fix: Since this error relates to an internal mechanical component, a simple reset rarely resolves it long-term. Persistent nE codes typically require a certified technician to inspect or replace the motor.
9. PF – Power Failure
PF appears after a power interruption, showing that the dishwasher lost electricity mid-cycle. The unit automatically resumes its last operation once power returns.
To diagnose this visually, note whether this code coincides with a known outage in your area or a breaker trip. Frequent recurrence without any actual outage suggests an electrical supply issue.
To fix: Press any key on the control panel to clear the display, which may take about ten seconds. If PF appears repeatedly without outages, have an electrician verify your circuit’s amperage.
10. tE – Thermal Error
tE signals a thermal fault, triggered when water temperature climbs above 194°F or the thermistor sensor malfunctions. This protective code prevents damage from overheating.
To diagnose this visually, check for excessive steam or unusually hot water during the wash compared to normal cycles. A faulty sensor may also cause this code even without true overheating.
To fix: This error typically requires professional inspection since it involves a sensor component. Request repair service if the error continues after a standard power reset.
11. Cr – Test Mode Activated
Cr indicates the dishwasher has entered TEST MODE, a diagnostic setting used by installers and technicians. It’s triggered accidentally by holding three buttons simultaneously.
To diagnose this visually, watch for the cycle behaving oddly, skipping steps, or running continuously without progressing normally. This confirms the unit is stuck in test mode rather than experiencing a real fault.
To fix: Press the POWER button to turn off the unit, then wait one to two minutes before turning it back on. This should exit test mode, but if Cr persists, the unit will need repair service.
LG Dishwasher Status Codes That Are NOT Errors
Not every code on your display signals a problem, and confusing the two can lead to unnecessary repair calls.
Here’s a clear breakdown of the codes that simply show your dishwasher’s normal settings and features:
12. CL – Child Lock Active
CL is not an error code but an indicator that the Child Lock or Control Lock feature has been activated. When enabled, all buttons stop responding except the door and POWER button.
To diagnose this visually, check whether pressing any cycle or option button produces no response on the display. The CL indicator itself will remain illuminated on the panel as confirmation.
To fix: To deactivate it, press and hold the RINSE and SPRAY buttons together for three seconds. On some models, holding DUAL ZONE for three seconds during a running cycle disables control lock instead.
13. 2H – Estimated Time Remaining
2H simply displays the estimated time left in your current wash cycle, shown once remaining time drops below two hours. It is a normal countdown indicator, not a malfunction.
To diagnose this visually, watch the display count down in minutes as the cycle progresses toward completion. The numbers will keep decreasing steadily until the wash finishes.
To fix: No action is needed since this isn’t an error requiring a fix. Simply allow the cycle to continue running until it completes on its own.
14. P1–P4 – Cycle Selection
P1 through P4 indicate which download cycle has been selected on your dishwasher, not an error condition. Each number corresponds to a specific wash type suited to different dish loads.
To diagnose this visually, check which cycle option was pressed before starting, since P1 covers pots and pans while P4 handles overnight care washing. The display simply confirms your selection.
To fix: If you want a different cycle, press CANCEL to stop the current selection and choose the appropriate P1–P4 option again. No repair or reset is required for this indicator.
15. L0–L4 – Rinse Aid Level
L0 through L4 represent the rinse aid dispenser’s current setting, factory-programmed to L2 by default. This is a normal configuration display, not an error.
To diagnose this visually, press Dual Zone and Power simultaneously to reveal the current level shown on the display. Spotting, streaking, or foaming on dishes can hint at whether the level needs adjusting.
To fix: Press Delay Start to cycle through settings from L0 to L4, then press Start once you’ve selected the desired level. Lower settings suit high water hardness, while higher settings help with drying performance.
16. 01–24 – Delay Start Timer
A two-digit number like 01, 02, or up to 24 indicates the Delay Start feature has been activated, showing how many hours until the cycle begins. This is a scheduling function, not a fault.
To diagnose this visually, check the display for a countdown-style number rather than a letter-based code, confirming it’s a delay setting rather than an error. The number decreases as the wait time passes.
To fix: To cancel the delay and start washing immediately, press the CANCEL button to deactivate the timer. The cycle will then begin right away instead of waiting out the remaining hours.
Quick Glance: LG Dishwasher Codes
| Code | What It Means | Quick Checks |
| bE | Suds/detergent error | Check for foam above bottom rack; confirm dishwasher-safe detergent is used |
| AE / E1 | Leak detected | Look for water pooling under or around the base |
| IE | Water inlet error | Trace supply line for kinks; check water pressure |
| LE / CE | Motor error | Listen for grinding, humming, or silence during wash |
| OE | Drain error | Check for standing water in tub; inspect filter and drain hose |
| FE | Fill error | Watch for cycle pausing mid-fill with continuous pump noise |
| HE | Heater error | Dishes come out cold/undried or excess steam appears |
| nE | Vario motor error | Check for uneven cleaning or weak spray movement |
| PF | Power failure | Confirm if it followed a known outage or breaker trip |
| tE | Thermal error | Check for excessive steam or abnormally hot water |
| Cr | Test mode activated | Cycle skips steps or runs without progressing |
Use this table as your first stop whenever a new code pops up on the display. If the quick checks don’t resolve it, the detailed sections above walk through the full fix for each one.
How to Reset Your LG Dishwasher After an Error
Before calling for repair, a simple reset can often clear the error and get your dishwasher running again. Here’s what to try first, and how to tell when a reset alone won’t cut it.
- Power off and restart: Turn off the unit and circuit breaker, wait ten seconds, then power back on and run a fresh cycle to test.
- Watch for quick fixes: This clears most temporary glitches, especially FE, HE, or PF codes caused by momentary faults.
- Spot the warning signs: Immediate code repeats, grinding noises, persistent leaks, dirty/wet dishes, or rotating codes point to a failed part.
- Know when to stop resetting: Repeated symptoms mean the issue is mechanical, not temporary. Call a technician instead of resetting again.
A reset is always worth trying first, but persistent symptoms are your signal to stop troubleshooting and book a repair.
When to Call a Technician
Some error codes point to issues you can fix yourself with a quick reset or check. Others involve internal components that need professional tools and expertise to repair safely.
Codes like LE, CE, HE, NE, and TE typically require a technician, since they involve motors, heaters, or sensors. Opening these components yourself can void your warranty or worsen the damage.
Persistent AE, E1, or FE codes also warrant a service call, especially when you cannot locate a visible leak source. These often trace back to hidden internal hoses, pumps, or seals.
If a code returns right after a power reset, that is a strong signal the problem is mechanical rather than temporary. On an older unit that keeps failing, weighing repair costs against a newer model, like those in this dishwasher review, can save money in the long run.
You can book service directly through LG’s official repair request page or call LG customer support at 1-800-243-0000 to speak with a representative and arrange a certified technician visit.
Preventing Future Error Codes
A few simple habits can keep your dishwasher running smoothly and help you avoid error codes altogether.
Here’s what to focus on to reduce breakdowns and extend appliance life:
- Use the right detergent: Always use dishwasher-specific detergent, never dish soap, to prevent suds and foam errors.
- Keep the unit level: Check leveling front-to-back and side-to-side regularly, and avoid overloading racks to prevent water blockage.
- Seal it properly: Ensure the door seal closes tightly every time to avoid leak-related codes.
- Stay on top of maintenance: Clean the filter and spray arms monthly, inspect hoses for kinks, and check the water inlet valve for debris, the same airflow-and-filter care that clears LG dryer error codes like D80.
Sticking to these habits eliminates many suds, leak, and fill-related errors while reducing wear on internal components over time.
Conclusion Note
A flashing code does not always mean an expensive repair bill. With the rightLG dishwasher error codes explained, you can identify and fix many common issues with simple checks or resets.
Understanding these error messages helps you save time, avoid unnecessary service calls, and match each code with its possible cause and solution. From suds errors to drainage problems, each warning gives a clue about what your dishwasher needs.
Keep this information handy whenever your display shows an unfamiliar code. Try the recommended reset steps first, and contact a professional only if the issue continues.
Have a code that is not covered? Share it in the comments, and we’ll help you figure out the next step.
Frequently Asked Questions
What Are the Most Common LG Dishwasher Error Codes?
The most common codes include IE (water Inlet), Oe (drain Error), FE (fill Error), He (heater Fault), Le/ce (motor Error), and Ae/e1 (leak detected).
Why Is My LG Dishwasher Showing an Oe Error Code?
An OE code means your dishwasher isn’t Draining Properly. This Usually Happens Due to A Clogged Filter, a Bent Drain Hose, or A Blocked Garbage Disposal Connection that Needs Clearing.
How Do I Reset My LG Dishwasher After an Error Code Appears?
Press POWER to turn off the unit, switch off the circuit breaker for ten seconds, turn it back on, then restart a new cycle.
